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BOSTON MARATHON 2025

Katie Bell

Bib: 27933•F

NH

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
35:11
Rank: #27865
Start → 5K
35:11 | 11:19/mi
10K· 6.21 mi
1:12:20
Rank: #27912 (-47)
5K → 10K
37:09 | 11:57/mi
15K· 9.32 mi
1:49:44
Rank: #27862 (+50)
10K → 15K
37:24 | 12:02/mi
20K· 12.43 mi
2:24:43
Rank: #27516 (+346)
15K → 20K
34:59 | 11:16/mi
Half· 13.11 mi
2:32:16
Rank: #27480 (+36)
20K → Half
7:33 | 11:04/mi
25K· 15.53 mi
3:00:41
Rank: #27238 (+242)
Half → 25K
28:25 | 11:43/mi
30K· 18.64 mi
3:41:16
Rank: #27161 (+77)
25K → 30K
40:35 | 13:04/mi
20M
3:59:16
Rank: #27145 (+16)
30K → 20M
18:00 | 13:15/mi
21M
4:11:28
Rank: #27044 (+101)
20M → 21M
12:12 | 12:12/mi
35K· 21.75 mi
4:19:57
Rank: #27005 (+39)
21M → 35K
8:29 | 11:20/mi
23M
4:36:57
Rank: #27017 (-12)
35K → 23M
17:00 | 13:35/mi
24M
4:48:41
Rank: #26964 (+53)
23M → 24M
11:44 | 11:44/mi
40K· 24.85 mi
4:58:52
Rank: #26893 (+71)
24M → 40K
10:11 | 11:55/mi
25.2M
5:05:48
Rank: #26978 (-85)
40K → 25.2M
6:56 | 20:06/mi
Finish· 26.22 mi
5:17:11
Rank: #26943 (+35)
25.2M → Finish
11:23 | 11:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:32:16
Pace11:37 /mi
2nd Half
Distance13.11 mi
Time2:44:55
Pace12:35 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:01:2535:1111:1935:11
11:19
-
10K
6.21 mi12:38:341:12:2011:3837:09
11:57
+0:38
15K
9.32 mi13:15:581:49:4411:4637:24
12:02
+0:05
20K
12.43 mi13:50:572:24:4311:3934:59
11:16
-0:46
Half
13.11 mi13:58:302:32:1611:377:33
11:04
-0:12
25K
15.53 mi14:26:553:00:4111:3828:25
11:43
+0:39
30K
18.64 mi15:07:303:41:1611:5240:35
13:04
+1:21
20M
20.00 mi15:25:303:59:1611:5818:00
13:15
+0:11
21M
21.00 mi15:37:424:11:2811:5812:12
12:12
-1:03
35K
21.75 mi15:46:114:19:5711:578:29
11:20
-0:52
23M
23.00 mi16:03:114:36:5712:0217:00
13:35
+2:15
24M
24.00 mi16:14:554:48:4112:0211:44
11:44
-1:51
40K
24.85 mi16:25:064:58:5212:0110:11
11:55
+0:11
25.2M
25.20 mi16:32:025:05:4812:086:56
20:06
+8:11
Finish
26.22 mi16:43:255:17:1112:0611:23
11:10
-8:56

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

11:04 /mi

Average Pace

12:06 /mi

Slowest Pace

20:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:54:40

74% of race

Time at Slower Pace

1:22:31

26% of race

Average Pace: 12:06 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi12:01:2535:1111:1935:11
11:19
#27865
10K
6.21 mi12:38:341:12:2011:3837:09
11:57
#27912
15K
9.32 mi13:15:581:49:4411:4637:24
12:02
#27862
20K
12.43 mi13:50:572:24:4311:3934:59
11:16
#27516
Half
13.11 mi13:58:302:32:1611:377:33
11:04
#27480
25K
15.53 mi14:26:553:00:4111:3828:25
11:43
#27238
30K
18.64 mi15:07:303:41:1611:5240:35
13:04
#27161
20M
20.00 mi15:25:303:59:1611:5818:00
13:15
#27145
21M
21.00 mi15:37:424:11:2811:5812:12
12:12
#27044
35K
21.75 mi15:46:114:19:5711:578:29
11:20
#27005
23M
23.00 mi16:03:114:36:5712:0217:00
13:35
#27017
24M
24.00 mi16:14:554:48:4112:0211:44
11:44
#26964
40K
24.85 mi16:25:064:58:5212:0110:11
11:55
#26893
25.2M
25.20 mi16:32:025:05:4812:086:56
20:06
#26978
Finish
26.22 mi16:43:255:17:1112:0611:23
11:10
#26943
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27865118751187527651(Top 97%)11779(Top 96%)11779(Top 215%)
10K6.21 mi3.10 mi27912-4711899-2411899-2427911(Top 98%)11916(Top 97%)11916(Top 218%)
15K9.32 mi3.11 mi27862+5011880+1911880+1927651(Top 97%)11779(Top 96%)11779(Top 215%)
20K12.43 mi3.11 mi27516+34611671+20911671+20926349(Top 93%)11002(Top 90%)11002(Top 201%)
Half13.11 mi0.68 mi27480+3611651+2011651+2026566(Top 94%)11157(Top 91%)11157(Top 204%)
25K15.53 mi2.42 mi27238+24211523+12811523+12826112(Top 92%)10920(Top 89%)10920(Top 200%)
30K18.64 mi3.11 mi27161+7711497+2611497+2626744(Top 94%)11354(Top 93%)11354(Top 208%)
20M20.00 mi1.36 mi27145+1611491+611491+626673(Top 94%)11384(Top 93%)11384(Top 208%)
21M21.00 mi1.00 mi27044+10111440+5111440+5123920(Top 84%)9992(Top 82%)9992(Top 183%)
35K21.75 mi0.75 mi27005+3911420+2011420+2024813(Top 87%)10483(Top 86%)10483(Top 192%)
23M23.00 mi1.25 mi27017-1211437-1711437-1726939(Top 95%)11574(Top 95%)11574(Top 212%)
24M24.00 mi1.00 mi26964+5311407+3011407+3025286(Top 89%)10769(Top 88%)10769(Top 197%)
40K24.85 mi0.85 mi26893+7111385+2211385+2224755(Top 87%)10554(Top 86%)10554(Top 193%)
25.2M25.20 mi0.35 mi26978-8511431-4611431-4628358(Top 100%)12216(Top 100%)12216(Top 223%)
Finish26.22 mi1.02 mi26943+3511417+1411417+1425647(Top 90%)10981(Top 90%)10981(Top 201%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21stories
+97ft-345ft

Overall

27651

Females

11779

F18-39

11779

5K→10K

3.1 - 6.2 mi

Top 98%
×5stories
+79ft-138ft

Overall

27911

Females

11916

F18-39

11916

10K→15K

6.2 - 9.3 mi

Top 97%
×3stories
+67ft-78ft

Overall

27651

Females

11779

F18-39

11779

15K→20K

9.3 - 12.4 mi

Top 93%
×5stories
+106ft-86ft

Overall

26349

Females

11002

F18-39

11002

20K→Half

12.4 - 13.1 mi

Top 94%
×2stories
+19ft-37ft

Overall

26566

Females

11157

F18-39

11157

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

26112

Females

10920

F18-39

10920

25K→30K

15.5 - 18.6 mi

Top 94%
×9stories
+181ft-148ft

Overall

26744

Females

11354

F18-39

11354

30K→20M

18.6 - 20.0 mi

Top 94%
×5stories
+64ft-50ft

Overall

26673

Females

11384

F18-39

11384

20M→21M

20.0 - 21.0 mi

Top 84%
×8stories
+106ft-24ft

Overall

23920

Females

9992

F18-39

9992

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

24813

Females

10483

F18-39

10483

35K→23M

21.8 - 23.0 mi

Top 95%
×5stories
+23ft-63ft

Overall

26939

Females

11574

F18-39

11574

23M→24M

23.0 - 24.0 mi

Top 89%
×6stories
+12ft-82ft

Overall

25286

Females

10769

F18-39

10769

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

24755

Females

10554

F18-39

10554

40K→25.2M

24.9 - 25.2 mi

Top 100%
×1story
+13ft-16ft

Overall

28358

Females

12216

F18-39

12216

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2stories
+22ft-21ft

Overall

25647

Females

10981

F18-39

10981

Passing Analysis

Category:
Athletes Passed
1272
Passed By
350
Net Change
+922
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27865
5K → 10K69116-47#27865#27912
10K → 15K8737+50#27912#27862
15K → 20K3460+346#27862#27516
20K → Half371+36#27516#27480
Half → 25K2464+242#27480#27238
25K → 30K11740+77#27238#27161
30K → 20M4125+16#27161#27145
20M → 21M1010+101#27145#27044
21M → 35K412+39#27044#27005
35K → 23M2234-12#27005#27017
23M → 24M563+53#27017#26964
24M → 40K710+71#26964#26893
40K → 25.2M085-85#26893#26978
25.2M → Finish383+35#26978#26943
TOTALS1272350+922
📊

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