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BOSTON MARATHON 2025

Kristin Stahl

Bib: 23442•F

MO

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:00
Rank: #20978
Start → 5K
27:00 | 8:41/mi
10K· 6.21 mi
54:41
Rank: #21458 (-480)
5K → 10K
27:41 | 8:55/mi
15K· 9.32 mi
1:23:02
Rank: #21856 (-398)
10K → 15K
28:21 | 9:07/mi
20K· 12.43 mi
1:52:26
Rank: #22147 (-291)
15K → 20K
29:24 | 9:28/mi
Half· 13.11 mi
1:58:51
Rank: #22204 (-57)
20K → Half
6:25 | 9:24/mi
25K· 15.53 mi
2:23:15
Rank: #22517 (-313)
Half → 25K
24:24 | 10:04/mi
30K· 18.64 mi
2:56:35
Rank: #22731 (-214)
25K → 30K
33:20 | 10:44/mi
20M
3:11:14
Rank: #22755 (-24)
30K → 20M
14:39 | 10:47/mi
21M
3:22:41
Rank: #22729 (+26)
20M → 21M
11:27 | 11:27/mi
35K· 21.75 mi
3:31:05
Rank: #22814 (-85)
21M → 35K
8:24 | 11:14/mi
23M
3:44:21
Rank: #22772 (+42)
35K → 23M
13:16 | 10:36/mi
24M
3:55:04
Rank: #22763 (+9)
23M → 24M
10:43 | 10:43/mi
40K· 24.85 mi
4:04:21
Rank: #22768 (-5)
24M → 40K
9:17 | 10:51/mi
25.2M
4:08:36
Rank: #22792 (-24)
40K → 25.2M
4:15 | 12:19/mi
Finish· 26.22 mi
4:18:51
Rank: #22815 (-23)
25.2M → Finish
10:15 | 10:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:51
Pace9:04 /mi
2nd Half
Distance13.11 mi
Time2:20:00
Pace10:41 /mi
📊Positive Split: 17.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:2827:008:4127:00
8:41
-
10K
6.21 mi11:52:0954:418:4827:41
8:55
+0:14
15K
9.32 mi12:20:301:23:028:5528:21
9:07
+0:12
20K
12.43 mi12:49:541:52:269:0329:24
9:28
+0:21
Half
13.11 mi12:56:191:58:519:046:25
9:24
-0:04
25K
15.53 mi13:20:432:23:159:1324:24
10:04
+0:40
30K
18.64 mi13:54:032:56:359:2833:20
10:44
+0:40
20M
20.00 mi14:08:423:11:149:3414:39
10:47
+0:03
21M
21.00 mi14:20:093:22:419:3911:27
11:27
+0:40
35K
21.75 mi14:28:333:31:059:428:24
11:14
-0:13
23M
23.00 mi14:41:493:44:219:4513:16
10:36
-0:38
24M
24.00 mi14:52:323:55:049:4810:43
10:43
+0:07
40K
24.85 mi15:01:494:04:219:509:17
10:51
+0:08
25.2M
25.20 mi15:06:044:08:369:524:15
12:19
+1:28
Finish
26.22 mi15:16:194:18:519:5310:15
10:04
-2:15

Checkpoints & Pacing

📈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

8:41 /mi

Average Pace

9:53 /mi

Slowest Pace

12:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:30

59% of race

Time at Steady Pace

1:21:15

31% of race

Time at Slower Pace

24:06

9% of race

Average Pace: 9:52 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:24:2827:008:4127:00
8:41
#20978
10K
6.21 mi11:52:0954:418:4827:41
8:55
#21458
15K
9.32 mi12:20:301:23:028:5528:21
9:07
#21856
20K
12.43 mi12:49:541:52:269:0329:24
9:28
#22147
Half
13.11 mi12:56:191:58:519:046:25
9:24
#22204
25K
15.53 mi13:20:432:23:159:1324:24
10:04
#22517
30K
18.64 mi13:54:032:56:359:2833:20
10:44
#22731
20M
20.00 mi14:08:423:11:149:3414:39
10:47
#22755
21M
21.00 mi14:20:093:22:419:3911:27
11:27
#22729
35K
21.75 mi14:28:333:31:059:428:24
11:14
#22814
23M
23.00 mi14:41:493:44:219:4513:16
10:36
#22772
24M
24.00 mi14:52:323:55:049:4810:43
10:43
#22763
40K
24.85 mi15:01:494:04:219:509:17
10:51
#22768
25.2M
25.20 mi15:06:044:08:369:524:15
12:19
#22792
Finish
26.22 mi15:16:194:18:519:5310:15
10:04
#22815
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi209788073807322576(Top 79%)8878(Top 73%)8878(Top 681%)
10K6.21 mi3.10 mi21458-4808314-2418314-24121991(Top 77%)8594(Top 70%)8594(Top 660%)
15K9.32 mi3.11 mi21856-3988522-2088522-20822576(Top 79%)8878(Top 73%)8878(Top 681%)
20K12.43 mi3.11 mi22147-2918678-1568678-15622792(Top 80%)9030(Top 74%)9030(Top 693%)
Half13.11 mi0.68 mi22204-578712-348712-3423293(Top 82%)9310(Top 76%)9310(Top 715%)
25K15.53 mi2.42 mi22517-3138870-1588870-15823425(Top 82%)9440(Top 77%)9440(Top 724%)
30K18.64 mi3.11 mi22731-2149031-1619031-16123460(Top 83%)9585(Top 78%)9585(Top 736%)
20M20.00 mi1.36 mi22755-249075-449075-4423144(Top 81%)9491(Top 78%)9491(Top 728%)
21M21.00 mi1.00 mi22729+269076-19076-122539(Top 79%)9265(Top 76%)9265(Top 711%)
35K21.75 mi0.75 mi22814-859142-669142-6624668(Top 87%)10411(Top 85%)10411(Top 799%)
23M23.00 mi1.25 mi22772+429140+29140+222266(Top 78%)9208(Top 75%)9208(Top 707%)
24M24.00 mi1.00 mi22763+99151-119151-1123368(Top 82%)9812(Top 80%)9812(Top 753%)
40K24.85 mi0.85 mi22768-59176-259176-2522824(Top 80%)9610(Top 79%)9610(Top 738%)
25.2M25.20 mi0.35 mi22792-249199-239199-2323881(Top 84%)10106(Top 83%)10106(Top 776%)
Finish26.22 mi1.02 mi22815-239228-299228-2923114(Top 81%)9721(Top 79%)9721(Top 746%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

22576

Females

8878

F50-54

8878

5K→10K

3.1 - 6.2 mi

Top 77%
×5stories
+79ft-138ft

Overall

21991

Females

8594

F50-54

8594

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

22576

Females

8878

F50-54

8878

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

22792

Females

9030

F50-54

9030

20K→Half

12.4 - 13.1 mi

Top 82%
×2stories
+19ft-37ft

Overall

23293

Females

9310

F50-54

9310

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

23425

Females

9440

F50-54

9440

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

23460

Females

9585

F50-54

9585

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

23144

Females

9491

F50-54

9491

20M→21M

20.0 - 21.0 mi

Top 79%
×8stories
+106ft-24ft

Overall

22539

Females

9265

F50-54

9265

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

24668

Females

10411

F50-54

10411

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

22266

Females

9208

F50-54

9208

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

23368

Females

9812

F50-54

9812

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22824

Females

9610

F50-54

9610

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23881

Females

10106

F50-54

10106

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

23114

Females

9721

F50-54

9721

Passing Analysis

Category:
Athletes Passed
955
Passed By
2792
Net Change
-1837
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20978
5K → 10K123603-480#20978#21458
10K → 15K103501-398#21458#21856
15K → 20K114405-291#21856#22147
20K → Half2077-57#22147#22204
Half → 25K61374-313#22204#22517
25K → 30K113327-214#22517#22731
30K → 20M7498-24#22731#22755
20M → 21M8054+26#22755#22729
21M → 35K27112-85#22729#22814
35K → 23M8846+42#22814#22772
23M → 24M5344+9#22772#22763
24M → 40K4853-5#22763#22768
40K → 25.2M1337-24#22768#22792
25.2M → Finish3861-23#22792#22815
TOTALS9552792-1837
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing