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BOSTON MARATHON 2025

Krista Thomson

Bib: 32408•F

WA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:27
Rank: #23071
Start → 5K
28:27 | 9:09/mi
10K· 6.21 mi
56:17
Rank: #22662 (+409)
5K → 10K
27:50 | 8:58/mi
15K· 9.32 mi
1:24:26
Rank: #22532 (+130)
10K → 15K
28:09 | 9:04/mi
20K· 12.43 mi
1:52:05
Rank: #22017 (+515)
15K → 20K
27:39 | 8:54/mi
Half· 13.11 mi
1:58:03
Rank: #21945 (+72)
20K → Half
5:58 | 8:45/mi
25K· 15.53 mi
2:21:23
Rank: #22006 (-61)
Half → 25K
23:20 | 9:37/mi
30K· 18.64 mi
2:51:17
Rank: #21700 (+306)
25K → 30K
29:54 | 9:37/mi
20M
3:04:38
Rank: #21599 (+101)
30K → 20M
13:21 | 9:49/mi
21M
3:14:59
Rank: #21468 (+131)
20M → 21M
10:21 | 10:21/mi
35K· 21.75 mi
3:22:36
Rank: #21525 (-57)
21M → 35K
7:37 | 10:11/mi
23M
3:35:20
Rank: #21479 (+46)
35K → 23M
12:44 | 10:10/mi
24M
3:45:13
Rank: #21447 (+32)
23M → 24M
9:53 | 9:53/mi
40K· 24.85 mi
3:53:29
Rank: #21361 (+86)
24M → 40K
8:16 | 9:40/mi
25.2M
3:57:06
Rank: #21319 (+42)
40K → 25.2M
3:37 | 10:29/mi
Finish· 26.22 mi
4:05:43
Rank: #21153 (+166)
25.2M → Finish
8:37 | 8:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:03
Pace9:00 /mi
2nd Half
Distance13.11 mi
Time2:07:40
Pace9:44 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:2728:279:0928:27
9:09
-
10K
6.21 mi12:21:1756:179:0327:50
8:58
-0:11
15K
9.32 mi12:49:261:24:269:0428:09
9:04
+0:06
20K
12.43 mi13:17:051:52:059:0127:39
8:54
-0:10
Half
13.11 mi13:23:031:58:039:005:58
8:45
-0:09
25K
15.53 mi13:46:232:21:239:0623:20
9:37
+0:52
30K
18.64 mi14:16:172:51:179:1129:54
9:37
0:00
20M
20.00 mi14:29:383:04:389:1413:21
9:49
+0:12
21M
21.00 mi14:39:593:14:599:1710:21
10:21
+0:32
35K
21.75 mi14:47:363:22:369:197:37
10:11
-0:10
23M
23.00 mi15:00:203:35:209:2212:44
10:10
-0:01
24M
24.00 mi15:10:133:45:139:239:53
9:53
-0:17
40K
24.85 mi15:18:293:53:299:248:16
9:40
-0:13
25.2M
25.20 mi15:22:063:57:069:253:37
10:29
+0:49
Finish
26.22 mi15:30:434:05:439:238:37
8:27
-2:02

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

8:27 /mi

Average Pace

9:23 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:40

52% of race

Time at Steady Pace

1:24:44

34% of race

Time at Slower Pace

34:19

14% of race

Average Pace: 9:22 /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 mi11:53:2728:279:0928:27
9:09
#23071
10K
6.21 mi12:21:1756:179:0327:50
8:58
#22662
15K
9.32 mi12:49:261:24:269:0428:09
9:04
#22532
20K
12.43 mi13:17:051:52:059:0127:39
8:54
#22017
Half
13.11 mi13:23:031:58:039:005:58
8:45
#21945
25K
15.53 mi13:46:232:21:239:0623:20
9:37
#22006
30K
18.64 mi14:16:172:51:179:1129:54
9:37
#21700
20M
20.00 mi14:29:383:04:389:1413:21
9:49
#21599
21M
21.00 mi14:39:593:14:599:1710:21
10:21
#21468
35K
21.75 mi14:47:363:22:369:197:37
10:11
#21525
23M
23.00 mi15:00:203:35:209:2212:44
10:10
#21479
24M
24.00 mi15:10:133:45:139:239:53
9:53
#21447
40K
24.85 mi15:18:293:53:299:248:16
9:40
#21361
25.2M
25.20 mi15:22:063:57:069:253:37
10:29
#21319
Finish
26.22 mi15:30:434:05:439:238:37
8:27
#21153
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi230719208920822301(Top 79%)8724(Top 71%)8724(Top 160%)
10K6.21 mi3.10 mi22662+4098967+2418967+24122208(Top 78%)8715(Top 71%)8715(Top 159%)
15K9.32 mi3.11 mi22532+1308873+948873+9422301(Top 79%)8724(Top 71%)8724(Top 160%)
20K12.43 mi3.11 mi22017+5158607+2668607+26620480(Top 72%)7763(Top 63%)7763(Top 142%)
Half13.11 mi0.68 mi21945+728569+388569+3820689(Top 73%)7874(Top 64%)7874(Top 144%)
25K15.53 mi2.42 mi22006-618610-418610-4122281(Top 78%)8807(Top 72%)8807(Top 161%)
30K18.64 mi3.11 mi21700+3068457+1538457+15320435(Top 72%)7898(Top 65%)7898(Top 144%)
20M20.00 mi1.36 mi21599+1018417+408417+4020385(Top 72%)8013(Top 66%)8013(Top 147%)
21M21.00 mi1.00 mi21468+1318373+448373+4419568(Top 69%)7669(Top 63%)7669(Top 140%)
35K21.75 mi0.75 mi21525-578413-408413-4022388(Top 79%)9225(Top 75%)9225(Top 169%)
23M23.00 mi1.25 mi21479+468418-58418-521032(Top 74%)8568(Top 70%)8568(Top 157%)
24M24.00 mi1.00 mi21447+328420-28420-221014(Top 74%)8607(Top 70%)8607(Top 157%)
40K24.85 mi0.85 mi21361+868396+248396+2419377(Top 68%)7829(Top 64%)7829(Top 143%)
25.2M25.20 mi0.35 mi21319+428383+138383+1319018(Top 67%)7657(Top 63%)7657(Top 140%)
Finish26.22 mi1.02 mi21153+1668309+748309+7415984(Top 56%)6022(Top 49%)6022(Top 110%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

22301

Females

8724

F18-39

8724

5K→10K

3.1 - 6.2 mi

Top 78%
×5stories
+79ft-138ft

Overall

22208

Females

8715

F18-39

8715

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

22301

Females

8724

F18-39

8724

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

20480

Females

7763

F18-39

7763

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

20689

Females

7874

F18-39

7874

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

22281

Females

8807

F18-39

8807

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

20435

Females

7898

F18-39

7898

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

20385

Females

8013

F18-39

8013

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

19568

Females

7669

F18-39

7669

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

22388

Females

9225

F18-39

9225

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

21032

Females

8568

F18-39

8568

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

21014

Females

8607

F18-39

8607

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19377

Females

7829

F18-39

7829

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

19018

Females

7657

F18-39

7657

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

15984

Females

6022

F18-39

6022

Passing Analysis

Category:
Athletes Passed
2655
Passed By
737
Net Change
+1918
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23071
5K → 10K48576+409#23071#22662
10K → 15K247117+130#22662#22532
15K → 20K5238+515#22532#22017
20K → Half808+72#22017#21945
Half → 25K128189-61#21945#22006
25K → 30K36862+306#22006#21700
30K → 20M14241+101#21700#21599
20M → 21M15423+131#21599#21468
21M → 35K3592-57#21468#21525
35K → 23M10458+46#21525#21479
23M → 24M7240+32#21479#21447
24M → 40K10115+86#21447#21361
40K → 25.2M497+42#21361#21319
25.2M → Finish1671+166#21319#21153
TOTALS2655737+1918
📊

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