All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Jennifer Roost

Bib: 23580•F

CA

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F50-54)
#0 / 1233
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
28:02
3.11 mi
Rank: #22774
Start → 5K
28:02 | 9:02/mi
10K
56:11
6.21 mi
Rank: #22930 (-156)
5K → 10K
28:09 | 9:04/mi
15K
1:24:22
9.32 mi
Rank: #22927 (+3)
10K → 15K
28:11 | 9:05/mi
20K
1:52:55
12.43 mi
Rank: #22880 (+47)
15K → 20K
28:33 | 9:12/mi
HALF
1:59:07
13.11 mi
Rank: #22897 (-17)
20K → HALF
6:12 | 9:06/mi
25K
2:21:37
15.53 mi
Rank: #22790 (+107)
HALF → 25K
22:30 | 9:17/mi
30K
2:51:35
18.64 mi
Rank: #22646 (+144)
25K → 30K
29:58 | 9:39/mi
20M
3:04:38
20.00 mi
Rank: #22554 (+92)
30K → 20M
13:03 | 9:37/mi
21M
3:14:43
21.00 mi
Rank: #22443 (+111)
20M → 21M
10:05 | 10:05/mi
35K
3:21:43
21.75 mi
Rank: #22381 (+62)
21M → 35K
7:00 | 9:22/mi
23M
3:35:30
23.00 mi
Rank: #22543 (-162)
35K → 23M
13:47 | 11:01/mi
24M
3:46:26
24.00 mi
Rank: #22696 (-153)
23M → 24M
10:56 | 10:56/mi
40K
3:56:45
24.85 mi
Rank: #22858 (-162)
24M → 40K
10:19 | 12:04/mi
25.2M
4:01:41
25.20 mi
Rank: #22981 (-123)
40K → 25.2M
4:56 | 14:19/mi
FINISH
4:13:28
26.22 mi
Rank: #23167 (-186)
25.2M → FINISH
11:47 | 11:34/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:59:07
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:14:21
Pace10:15 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:33:5628:029:0228:02
9:02
-
10K
6.21 mi12:02:0556:119:0328:09
9:04
+0:02
15K
9.32 mi12:30:161:24:229:0428:11
9:05
+0:01
20K
12.43 mi12:58:491:52:559:0628:33
9:12
+0:07
HALF
13.11 mi13:05:011:59:079:066:12
9:06
-0:06
25K
15.53 mi13:27:312:21:379:0722:30
9:17
+0:11
30K
18.64 mi13:57:292:51:359:1329:58
9:39
+0:22
20M
20.00 mi14:10:323:04:389:1413:03
9:37
-0:02
21M
21.00 mi14:20:373:14:439:1710:05
10:05
+0:28
35K
21.75 mi14:27:373:21:439:177:00
9:22
-0:43
23M
23.00 mi14:41:243:35:309:2313:47
11:01
+1:39
24M
24.00 mi14:52:203:46:269:2710:56
10:56
-0:05
40K
24.85 mi15:02:393:56:459:3210:19
12:04
+1:08
25.2M
25.20 mi15:07:354:01:419:364:56
14:19
+2:15
FINISH
26.22 mi15:19:224:13:289:4111:47
11:34
-2:45

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

9:02 /mi

Average Pace

9:40 /mi

Slowest Pace

14:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:21:43

80% of race

Time at Slower Pace

51:45

20% of race

Average Pace: 9:40 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:33:5628:029:0228:02
9:02
#22774
10K
6.21 mi12:02:0556:119:0328:09
9:04
#22930
15K
9.32 mi12:30:161:24:229:0428:11
9:05
#22927
20K
12.43 mi12:58:491:52:559:0628:33
9:12
#22880
HALF
13.11 mi13:05:011:59:079:066:12
9:06
#22897
25K
15.53 mi13:27:312:21:379:0722:30
9:17
#22790
30K
18.64 mi13:57:292:51:359:1329:58
9:39
#22646
20M
20.00 mi14:10:323:04:389:1413:03
9:37
#22554
21M
21.00 mi14:20:373:14:439:1710:05
10:05
#22443
35K
21.75 mi14:27:373:21:439:177:00
9:22
#22381
23M
23.00 mi14:41:243:35:309:2313:47
11:01
#22543
24M
24.00 mi14:52:203:46:269:2710:56
10:56
#22696
40K
24.85 mi15:02:393:56:459:3210:19
12:04
#22858
25.2M
25.20 mi15:07:354:01:419:364:56
14:19
#22981
FINISH
26.22 mi15:19:224:13:289:4111:47
11:34
#23167
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi227749058905823024(Top 79%)9156(Top 73%)9156(Top 743%)
10K6.21 mi3.10 mi22930-1569124-669124-6623089(Top 80%)9206(Top 73%)9206(Top 747%)
15K9.32 mi3.11 mi22927+39108+169108+1623024(Top 79%)9156(Top 73%)9156(Top 743%)
20K12.43 mi3.11 mi22880+479098+109098+1022716(Top 78%)9028(Top 72%)9028(Top 732%)
HALF13.11 mi0.68 mi22897-179106-89106-823149(Top 80%)9240(Top 73%)9240(Top 749%)
25K15.53 mi2.42 mi22790+1079068+389068+3822341(Top 77%)8855(Top 70%)8855(Top 718%)
30K18.64 mi3.11 mi22646+1449019+499019+4922099(Top 76%)8819(Top 70%)8819(Top 715%)
20M20.00 mi1.36 mi22554+928992+278992+2721465(Top 74%)8588(Top 68%)8588(Top 697%)
21M21.00 mi1.00 mi22443+1118939+538939+5320733(Top 71%)8238(Top 65%)8238(Top 668%)
35K21.75 mi0.75 mi22381+628914+258914+2521377(Top 74%)8642(Top 69%)8642(Top 701%)
23M23.00 mi1.25 mi22543-1629027-1139027-11324530(Top 85%)10324(Top 82%)10324(Top 837%)
24M24.00 mi1.00 mi22696-1539129-1029129-10224984(Top 86%)10596(Top 84%)10596(Top 859%)
40K24.85 mi0.85 mi22858-1629214-859214-8526001(Top 90%)11141(Top 89%)11141(Top 904%)
25.2M25.20 mi0.35 mi22981-1239278-649278-6427466(Top 95%)11860(Top 94%)11860(Top 962%)
FINISH26.22 mi1.02 mi23167-1869378-1009378-10026956(Top 93%)11614(Top 92%)11614(Top 942%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21
+97ft-345ft

Overall

23024

Females

9156

F50-54

9156

5K→10K

3.1 - 6.2 mi

Top 80%
×5
+79ft-138ft

Overall

23089

Females

9206

F50-54

9206

10K→15K

6.2 - 9.3 mi

Top 79%
×3
+67ft-78ft

Overall

23024

Females

9156

F50-54

9156

15K→20K

9.3 - 12.4 mi

Top 78%
×5
+106ft-86ft

Overall

22716

Females

9028

F50-54

9028

20K→HALF

12.4 - 13.1 mi

Top 80%
×2
+19ft-37ft

Overall

23149

Females

9240

F50-54

9240

HALF→25K

13.1 - 15.5 mi

Top 77%
×4
+66ft-88ft

Overall

22341

Females

8855

F50-54

8855

25K→30K

15.5 - 18.6 mi

Top 76%
×9
+181ft-148ft

Overall

22099

Females

8819

F50-54

8819

30K→20M

18.6 - 20.0 mi

Top 74%
×5
+64ft-50ft

Overall

21465

Females

8588

F50-54

8588

20M→21M

20.0 - 21.0 mi

Top 71%
×8
+106ft-24ft

Overall

20733

Females

8238

F50-54

8238

21M→35K

21.0 - 21.8 mi

Top 74%
×7
+17ft-86ft

Overall

21377

Females

8642

F50-54

8642

35K→23M

21.8 - 23.0 mi

Top 85%
×5
+23ft-63ft

Overall

24530

Females

10324

F50-54

10324

23M→24M

23.0 - 24.0 mi

Top 86%
×6
+12ft-82ft

Overall

24984

Females

10596

F50-54

10596

24M→40K

24.0 - 24.9 mi

Top 90%
×1
+6ft-20ft

Overall

26001

Females

11141

F50-54

11141

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1
+13ft-16ft

Overall

27466

Females

11860

F50-54

11860

25.2M→FINISH

25.2 - 26.2 mi

Top 93%
×2
+22ft-21ft

Overall

26956

Females

11614

F50-54

11614

Is this your race? Claiming it gets you a full AI race analysis — free, sent to you by email.

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1387
Passed By
1780
Net Change
-393
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22774
5K → 10K190346-156#22774#22930
10K → 15K168165+3#22930#22927
15K → 20K173126+47#22927#22880
20K → HALF2239-17#22880#22897
HALF → 25K17366+107#22897#22790
25K → 30K247103+144#22790#22646
30K → 20M12634+92#22646#22554
20M → 21M13726+111#22554#22443
21M → 35K7513+62#22443#22381
35K → 23M31193-162#22381#22543
23M → 24M18171-153#22543#22696
24M → 40K19181-162#22696#22858
40K → 25.2M2125-123#22858#22981
25.2M → FINISH6192-186#22981#23167
TOTALS13871780-393

Is this your race? Claiming it gets you a full AI race analysis — free, sent to you by email.

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing