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BOSTON MARATHON 2026

Jamie Grossman

Bib: 14603•F

MD

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 24%
Gender (Female)
#0 / 12578
Top 7%
Age Group (F18-39)
#0 / 5716
Top 14%
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
21:42
3.11 mi
Rank: #8428
Start → 5K
21:42 | 7:00/mi
10K
43:12
6.21 mi
Rank: #8243 (+185)
5K → 10K
21:30 | 6:56/mi
15K
1:04:34
9.32 mi
Rank: #8038 (+205)
10K → 15K
21:22 | 6:53/mi
20K
1:25:59
12.43 mi
Rank: #7728 (+310)
15K → 20K
21:25 | 6:54/mi
HALF
1:30:35
13.11 mi
Rank: #7686 (+42)
20K → HALF
4:36 | 6:45/mi
25K
1:47:16
15.53 mi
Rank: #7448 (+238)
HALF → 25K
16:41 | 6:53/mi
30K
2:09:10
18.64 mi
Rank: #7190 (+258)
25K → 30K
21:54 | 7:03/mi
20M
2:18:51
20.00 mi
Rank: #7092 (+98)
30K → 20M
9:41 | 7:08/mi
21M
2:26:28
21.00 mi
Rank: #7045 (+47)
20M → 21M
7:37 | 7:37/mi
35K
2:31:49
21.75 mi
Rank: #7044 (+1)
21M → 35K
5:21 | 7:10/mi
23M
2:40:52
23.00 mi
Rank: #6973 (+71)
35K → 23M
9:03 | 7:14/mi
24M
2:47:57
24.00 mi
Rank: #6932 (+41)
23M → 24M
7:05 | 7:05/mi
40K
2:54:16
24.85 mi
Rank: #6927 (+5)
24M → 40K
6:19 | 7:24/mi
25.2M
2:56:57
25.20 mi
Rank: #6905 (+22)
40K → 25.2M
2:41 | 7:47/mi
FINISH
3:04:12
26.22 mi
Rank: #6907 (-2)
25.2M → FINISH
7:15 | 7:07/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:30:35
Pace6:55 /mi
2nd Half
Distance13.11 mi
Time1:33:37
Pace7:09 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5021:427:0021:42
7:00
-
10K
6.21 mi11:13:2043:126:5821:30
6:56
-0:04
15K
9.32 mi11:34:421:04:346:5621:22
6:53
-0:03
20K
12.43 mi11:56:071:25:596:5621:25
6:54
+0:01
HALF
13.11 mi12:00:431:30:356:554:36
6:45
-0:09
25K
15.53 mi12:17:241:47:166:5516:41
6:53
+0:08
30K
18.64 mi12:39:182:09:106:5621:54
7:03
+0:10
20M
20.00 mi12:48:592:18:516:579:41
7:08
+0:05
21M
21.00 mi12:56:362:26:286:597:37
7:37
+0:29
35K
21.75 mi13:01:572:31:496:595:21
7:10
-0:27
23M
23.00 mi13:11:002:40:527:009:03
7:14
+0:04
24M
24.00 mi13:18:052:47:577:007:05
7:05
-0:09
40K
24.85 mi13:24:242:54:167:016:19
7:24
+0:19
25.2M
25.20 mi13:27:052:56:577:022:41
7:47
+0:23
FINISH
26.22 mi13:34:203:04:127:027:15
7:07
-0:40

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

6:45 /mi

Average Pace

7:02 /mi

Slowest Pace

7:47 /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

2:53:54

94% of race

Time at Steady Pace

10:18

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:02 /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 mi10:51:5021:427:0021:42
7:00
#8428
10K
6.21 mi11:13:2043:126:5821:30
6:56
#8243
15K
9.32 mi11:34:421:04:346:5621:22
6:53
#8038
20K
12.43 mi11:56:071:25:596:5621:25
6:54
#7728
HALF
13.11 mi12:00:431:30:356:554:36
6:45
#7686
25K
15.53 mi12:17:241:47:166:5516:41
6:53
#7448
30K
18.64 mi12:39:182:09:106:5621:54
7:03
#7190
20M
20.00 mi12:48:592:18:516:579:41
7:08
#7092
21M
21.00 mi12:56:362:26:286:597:37
7:37
#7045
35K
21.75 mi13:01:572:31:496:595:21
7:10
#7044
23M
23.00 mi13:11:002:40:527:009:03
7:14
#6973
24M
24.00 mi13:18:052:47:577:007:05
7:05
#6932
40K
24.85 mi13:24:242:54:167:016:19
7:24
#6927
25.2M
25.20 mi13:27:052:56:577:022:41
7:47
#6905
FINISH
26.22 mi13:34:203:04:127:027:15
7:07
#6907
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8428121512157606(Top 26%)985(Top 8%)985(Top 17%)
10K6.21 mi3.10 mi8243+1851167+481167+488091(Top 28%)1124(Top 9%)1124(Top 20%)
15K9.32 mi3.11 mi8038+2051106+611106+617606(Top 26%)985(Top 8%)985(Top 17%)
20K12.43 mi3.11 mi7728+3101005+1011005+1017054(Top 24%)846(Top 7%)846(Top 15%)
HALF13.11 mi0.68 mi7686+42996+9996+96720(Top 23%)747(Top 6%)747(Top 13%)
25K15.53 mi2.42 mi7448+238943+53943+536526(Top 22%)760(Top 6%)760(Top 13%)
30K18.64 mi3.11 mi7190+258870+73870+736321(Top 22%)776(Top 6%)776(Top 14%)
20M20.00 mi1.36 mi7092+98859+11859+116483(Top 22%)906(Top 7%)906(Top 16%)
21M21.00 mi1.00 mi7045+47867-8867-87290(Top 25%)1319(Top 10%)1319(Top 23%)
35K21.75 mi0.75 mi7044+1875-8875-88207(Top 28%)1633(Top 13%)1633(Top 29%)
23M23.00 mi1.25 mi6973+71877-2877-27014(Top 24%)1231(Top 10%)1231(Top 22%)
24M24.00 mi1.00 mi6932+41884-7884-77074(Top 24%)1316(Top 10%)1316(Top 23%)
40K24.85 mi0.85 mi6927+5897-13897-138071(Top 28%)1815(Top 14%)1815(Top 32%)
25.2M25.20 mi0.35 mi6905+22899-2899-27004(Top 24%)1403(Top 11%)1403(Top 25%)
FINISH26.22 mi1.02 mi6907-2916-17916-178472(Top 29%)2124(Top 17%)2124(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21
+97ft-345ft

Overall

7606

Females

985

F18-39

985

5K→10K

3.1 - 6.2 mi

Top 28%
×5
+79ft-138ft

Overall

8091

Females

1124

F18-39

1124

10K→15K

6.2 - 9.3 mi

Top 26%
×3
+67ft-78ft

Overall

7606

Females

985

F18-39

985

15K→20K

9.3 - 12.4 mi

Top 24%
×5
+106ft-86ft

Overall

7054

Females

846

F18-39

846

20K→HALF

12.4 - 13.1 mi

Top 23%
×2
+19ft-37ft

Overall

6720

Females

747

F18-39

747

HALF→25K

13.1 - 15.5 mi

Top 22%
×4
+66ft-88ft

Overall

6526

Females

760

F18-39

760

25K→30K

15.5 - 18.6 mi

Top 22%
×9
+181ft-148ft

Overall

6321

Females

776

F18-39

776

30K→20M

18.6 - 20.0 mi

Top 22%
×5
+64ft-50ft

Overall

6483

Females

906

F18-39

906

20M→21M

20.0 - 21.0 mi

Top 25%
×8
+106ft-24ft

Overall

7290

Females

1319

F18-39

1319

21M→35K

21.0 - 21.8 mi

Top 28%
×7
+17ft-86ft

Overall

8207

Females

1633

F18-39

1633

35K→23M

21.8 - 23.0 mi

Top 24%
×5
+23ft-63ft

Overall

7014

Females

1231

F18-39

1231

23M→24M

23.0 - 24.0 mi

Top 24%
×6
+12ft-82ft

Overall

7074

Females

1316

F18-39

1316

24M→40K

24.0 - 24.9 mi

Top 28%
×1
+6ft-20ft

Overall

8071

Females

1815

F18-39

1815

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1
+13ft-16ft

Overall

7004

Females

1403

F18-39

1403

25.2M→FINISH

25.2 - 26.2 mi

Top 29%
×2
+22ft-21ft

Overall

8472

Females

2124

F18-39

2124

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2066
Passed By
545
Net Change
+1521
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8428
5K → 10K300115+185#8428#8243
10K → 15K25247+205#8243#8038
15K → 20K32919+310#8038#7728
20K → HALF519+42#7728#7686
HALF → 25K25416+238#7686#7448
25K → 30K29032+258#7448#7190
30K → 20M12527+98#7190#7092
20M → 21M8437+47#7092#7045
21M → 35K4039+1#7045#7044
35K → 23M10938+71#7044#6973
23M → 24M8140+41#6973#6932
24M → 40K5348+5#6932#6927
40K → 25.2M3513+22#6927#6905
25.2M → FINISH6365-2#6905#6907
TOTALS2066545+1521
📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing