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BOSTON MARATHON 2026

Janet Boltz

Bib: 21451•F

MI

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 42%
Masters (Masters Women)
#0 / 6862
Top 27%
Age Group (F45-49)
#0 / 1786
Top 32%
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
24:39
3.11 mi
Rank: #16450
Start → 5K
24:39 | 7:57/mi
10K
49:19
6.21 mi
Rank: #16623 (-173)
5K → 10K
24:40 | 7:57/mi
15K
1:14:19
9.32 mi
Rank: #16852 (-229)
10K → 15K
25:00 | 8:03/mi
20K
1:39:23
12.43 mi
Rank: #16787 (+65)
15K → 20K
25:04 | 8:05/mi
HALF
1:44:45
13.11 mi
Rank: #16737 (+50)
20K → HALF
5:22 | 7:53/mi
25K
2:05:51
15.53 mi
Rank: #17276 (-539)
HALF → 25K
21:06 | 8:43/mi
30K
2:31:19
18.64 mi
Rank: #16823 (+453)
25K → 30K
25:28 | 8:12/mi
20M
2:42:39
20.00 mi
Rank: #16693 (+130)
30K → 20M
11:20 | 8:21/mi
21M
2:51:16
21.00 mi
Rank: #16503 (+190)
20M → 21M
8:37 | 8:37/mi
35K
2:57:09
21.75 mi
Rank: #16361 (+142)
21M → 35K
5:53 | 7:52/mi
23M
3:07:25
23.00 mi
Rank: #16181 (+180)
35K → 23M
10:16 | 8:13/mi
24M
3:15:15
24.00 mi
Rank: #16017 (+164)
23M → 24M
7:50 | 7:50/mi
40K
3:21:57
24.85 mi
Rank: #15845 (+172)
24M → 40K
6:42 | 7:51/mi
25.2M
3:24:52
25.20 mi
Rank: #15768 (+77)
40K → 25.2M
2:55 | 8:28/mi
FINISH
3:32:21
26.22 mi
Rank: #15582 (+186)
25.2M → FINISH
7:29 | 7:21/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:44:45
Pace8:00 /mi
2nd Half
Distance13.11 mi
Time1:47:36
Pace8:13 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:0024:397:5724:39
7:57
-
10K
6.21 mi11:50:4049:197:5724:40
7:57
0:00
15K
9.32 mi12:15:401:14:197:5925:00
8:03
+0:06
20K
12.43 mi12:40:441:39:238:0025:04
8:05
+0:02
HALF
13.11 mi12:46:061:44:458:005:22
7:53
-0:12
25K
15.53 mi13:07:122:05:518:0721:06
8:43
+0:50
30K
18.64 mi13:32:402:31:198:0825:28
8:12
-0:31
20M
20.00 mi13:44:002:42:398:0811:20
8:21
+0:09
21M
21.00 mi13:52:372:51:168:108:37
8:37
+0:16
35K
21.75 mi13:58:302:57:098:095:53
7:52
-0:45
23M
23.00 mi14:08:463:07:258:0910:16
8:13
+0:21
24M
24.00 mi14:16:363:15:158:097:50
7:50
-0:23
40K
24.85 mi14:23:183:21:578:086:42
7:51
+0:01
25.2M
25.20 mi14:26:133:24:528:082:55
8:28
+0:37
FINISH
26.22 mi14:33:423:32:218:077:29
7:21
-1:07

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

7:21 /mi

Average Pace

8:06 /mi

Slowest Pace

8:43 /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

2:12:39

62% of race

Time at Steady Pace

58:36

28% of race

Time at Slower Pace

21:06

10% of race

Average Pace: 8:06 /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 mi11:26:0024:397:5724:39
7:57
#16450
10K
6.21 mi11:50:4049:197:5724:40
7:57
#16623
15K
9.32 mi12:15:401:14:197:5925:00
8:03
#16852
20K
12.43 mi12:40:441:39:238:0025:04
8:05
#16787
HALF
13.11 mi12:46:061:44:458:005:22
7:53
#16737
25K
15.53 mi13:07:122:05:518:0721:06
8:43
#17276
30K
18.64 mi13:32:402:31:198:0825:28
8:12
#16823
20M
20.00 mi13:44:002:42:398:0811:20
8:21
#16693
21M
21.00 mi13:52:372:51:168:108:37
8:37
#16503
35K
21.75 mi13:58:302:57:098:095:53
7:52
#16361
23M
23.00 mi14:08:463:07:258:0910:16
8:13
#16181
24M
24.00 mi14:16:363:15:158:097:50
7:50
#16017
40K
24.85 mi14:23:183:21:578:086:42
7:51
#15845
25.2M
25.20 mi14:26:133:24:528:082:55
8:28
#15768
FINISH
26.22 mi14:33:423:32:218:077:29
7:21
#15582
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi164505591559117359(Top 60%)6114(Top 49%)6114(Top 342%)
10K6.21 mi3.10 mi16623-1735712-1215712-12116783(Top 58%)5786(Top 46%)5786(Top 324%)
15K9.32 mi3.11 mi16852-2295835-1235835-12317359(Top 60%)6114(Top 49%)6114(Top 342%)
20K12.43 mi3.11 mi16787+655806+295806+2916640(Top 57%)5728(Top 46%)5728(Top 321%)
HALF13.11 mi0.68 mi16737+505785+215785+2116185(Top 56%)5439(Top 43%)5439(Top 305%)
25K15.53 mi2.42 mi17276-5396092-3076092-30719725(Top 68%)7508(Top 60%)7508(Top 420%)
30K18.64 mi3.11 mi16823+4535869+2235869+22314919(Top 51%)4932(Top 39%)4932(Top 276%)
20M20.00 mi1.36 mi16693+1305811+585811+5815220(Top 52%)5194(Top 41%)5194(Top 291%)
21M21.00 mi1.00 mi16503+1905717+945717+9413897(Top 48%)4542(Top 36%)4542(Top 254%)
35K21.75 mi0.75 mi16361+1425656+615656+6113605(Top 47%)4437(Top 35%)4437(Top 248%)
23M23.00 mi1.25 mi16181+1805586+705586+7013855(Top 48%)4634(Top 37%)4634(Top 259%)
24M24.00 mi1.00 mi16017+1645514+725514+7212620(Top 43%)4059(Top 32%)4059(Top 227%)
40K24.85 mi0.85 mi15845+1725428+865428+8611376(Top 39%)3467(Top 28%)3467(Top 194%)
25.2M25.20 mi0.35 mi15768+775385+435385+4311479(Top 40%)3635(Top 29%)3635(Top 204%)
FINISH26.22 mi1.02 mi15582+1865300+855300+8510276(Top 35%)2998(Top 24%)2998(Top 168%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21
+97ft-345ft

Overall

17359

Females

6114

F45-49

6114

5K→10K

3.1 - 6.2 mi

Top 58%
×5
+79ft-138ft

Overall

16783

Females

5786

F45-49

5786

10K→15K

6.2 - 9.3 mi

Top 60%
×3
+67ft-78ft

Overall

17359

Females

6114

F45-49

6114

15K→20K

9.3 - 12.4 mi

Top 57%
×5
+106ft-86ft

Overall

16640

Females

5728

F45-49

5728

20K→HALF

12.4 - 13.1 mi

Top 56%
×2
+19ft-37ft

Overall

16185

Females

5439

F45-49

5439

HALF→25K

13.1 - 15.5 mi

Top 68%
×4
+66ft-88ft

Overall

19725

Females

7508

F45-49

7508

25K→30K

15.5 - 18.6 mi

Top 51%
×9
+181ft-148ft

Overall

14919

Females

4932

F45-49

4932

30K→20M

18.6 - 20.0 mi

Top 52%
×5
+64ft-50ft

Overall

15220

Females

5194

F45-49

5194

20M→21M

20.0 - 21.0 mi

Top 48%
×8
+106ft-24ft

Overall

13897

Females

4542

F45-49

4542

21M→35K

21.0 - 21.8 mi

Top 47%
×7
+17ft-86ft

Overall

13605

Females

4437

F45-49

4437

35K→23M

21.8 - 23.0 mi

Top 48%
×5
+23ft-63ft

Overall

13855

Females

4634

F45-49

4634

23M→24M

23.0 - 24.0 mi

Top 43%
×6
+12ft-82ft

Overall

12620

Females

4059

F45-49

4059

24M→40K

24.0 - 24.9 mi

Top 39%
×1
+6ft-20ft

Overall

11376

Females

3467

F45-49

3467

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1
+13ft-16ft

Overall

11479

Females

3635

F45-49

3635

25.2M→FINISH

25.2 - 26.2 mi

Top 35%
×2
+22ft-21ft

Overall

10276

Females

2998

F45-49

2998

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2416
Passed By
1548
Net Change
+868
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16450
5K → 10K205378-173#16450#16623
10K → 15K123352-229#16623#16852
15K → 20K206141+65#16852#16787
20K → HALF566+50#16787#16737
HALF → 25K39578-539#16737#17276
25K → 30K47118+453#17276#16823
30K → 20M14919+130#16823#16693
20M → 21M20515+190#16693#16503
21M → 35K15311+142#16503#16361
35K → 23M19313+180#16361#16181
23M → 24M1739+164#16181#16017
24M → 40K1742+172#16017#15845
40K → 25.2M770+77#15845#15768
25.2M → FINISH1926+186#15768#15582
TOTALS24161548+868
📊

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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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.

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing