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BOSTON MARATHON 2025

Casey Fields

Bib: 26131•F

MA

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
11:27/mi
35:34
↑ 97↓ 3451.5%
10K· 6.21 mi
11:21/mi
1:10:51
↑ 79↓ 1380.4%
15K· 9.32 mi
11:34/mi
1:46:48
↑ 67↓ 78
20K· 12.43 mi
12:38/mi
2:26:04
↑ 106↓ 860.1%
Half· 13.11 mi
11:55/mi
2:34:12
↑ 19↓ 370.5%
25K· 15.53 mi
13:12/mi
3:06:13
↑ 66↓ 880.2%
30K· 18.64 mi
13:38/mi
3:48:33
↑ 181↓ 1480.2%
20M
13:08/mi
4:06:24
↑ 64↓ 500.2%
21M
13:57/mi
4:20:21
↑ 106↓ 241.6%
35K· 21.75 mi
12:00/mi
4:29:20
↑ 17↓ 861.7%
23M
12:53/mi
4:45:28
↑ 23↓ 630.6%
24M
12:08/mi
4:57:36
↓ 821.3%
40K· 24.85 mi
12:37/mi
5:08:23
↓ 200.3%
25.2M
14:15/mi
5:13:18
↑ 13↓ 160.2%
Finish· 26.22 mi
12:16/mi
5:25:48
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:34:12
Pace11:46 /mi
2nd Half
Distance13.11 mi
Time2:51:36
Pace13:05 /mi
📊Positive Split: 11.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:5235:3411:2735:34
11:27
-
10K
6.21 mi12:31:091:10:5111:2435:17
11:21
-0:06
15K
9.32 mi13:07:061:46:4811:2835:57
11:34
+0:13
20K
12.43 mi13:46:222:26:0411:4539:16
12:38
+1:04
Half
13.11 mi13:54:302:34:1211:468:08
11:55
-0:43
25K
15.53 mi14:26:313:06:1311:5932:01
13:12
+1:17
30K
18.64 mi15:08:513:48:3312:1642:20
13:38
+0:26
20M
20.00 mi15:26:424:06:2412:1917:51
13:08
-0:30
21M
21.00 mi15:40:394:20:2112:2413:57
13:57
+0:49
35K
21.75 mi15:49:384:29:2012:238:59
12:00
-1:57
23M
23.00 mi16:05:464:45:2812:2516:08
12:53
+0:53
24M
24.00 mi16:17:544:57:3612:2412:08
12:08
-0:45
40K
24.85 mi16:28:415:08:2312:2410:47
12:37
+0:29
25.2M
25.20 mi16:33:365:13:1812:264:55
14:15
+1:38
Finish
26.22 mi16:46:065:25:4812:2612:30
12:16
-1:59

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

11:21 /mi

Average Pace

12:26 /mi

Slowest Pace

14:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:03

42% of race

Time at Steady Pace

1:18:41

24% of race

Time at Slower Pace

1:51:04

34% of race

Average Pace: 12:26 /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 mi11:55:5235:3411:2735:34
11:27
#27975
10K
6.21 mi12:31:091:10:5111:2435:17
11:21
#27732
15K
9.32 mi13:07:061:46:4811:2835:57
11:34
#27584
20K
12.43 mi13:46:222:26:0411:4539:16
12:38
#27623
Half
13.11 mi13:54:302:34:1211:468:08
11:55
#27613
25K
15.53 mi14:26:313:06:1311:5932:01
13:12
#27592
30K
18.64 mi15:08:513:48:3312:1642:20
13:38
#27540
20M
20.00 mi15:26:424:06:2412:1917:51
13:08
#27470
21M
21.00 mi15:40:394:20:2112:2413:57
13:57
#27424
35K
21.75 mi15:49:384:29:2012:238:59
12:00
#27393
23M
23.00 mi16:05:464:45:2812:2516:08
12:53
#27353
24M
24.00 mi16:17:544:57:3612:2412:08
12:08
#27319
40K
24.85 mi16:28:415:08:2312:2410:47
12:37
#27283
25.2M
25.20 mi16:33:365:13:1812:264:55
14:15
#27279
Finish
26.22 mi16:46:065:25:4812:2612:30
12:16
#27281
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27975119471194727288(Top 96%)11547(Top 94%)11547(Top 211%)
10K6.21 mi3.10 mi27732+24311788+15911788+15927455(Top 97%)11638(Top 95%)11638(Top 213%)
15K9.32 mi3.11 mi27584+14811708+8011708+8027288(Top 96%)11547(Top 94%)11547(Top 211%)
20K12.43 mi3.11 mi27623-3911745-3711745-3727614(Top 97%)11761(Top 96%)11761(Top 215%)
Half13.11 mi0.68 mi27613+1011740+511740+527389(Top 96%)11640(Top 95%)11640(Top 213%)
25K15.53 mi2.42 mi27592+2111729+1111729+1127428(Top 97%)11671(Top 95%)11671(Top 213%)
30K18.64 mi3.11 mi27540+5211723+611723+627220(Top 96%)11615(Top 95%)11615(Top 212%)
20M20.00 mi1.36 mi27470+7011694+2911694+2926573(Top 94%)11325(Top 93%)11325(Top 207%)
21M21.00 mi1.00 mi27424+4611662+3211662+3226179(Top 92%)11145(Top 91%)11145(Top 204%)
35K21.75 mi0.75 mi27393+3111649+1311649+1325855(Top 91%)11033(Top 90%)11033(Top 202%)
23M23.00 mi1.25 mi27353+4011631+1811631+1826253(Top 92%)11226(Top 92%)11226(Top 205%)
24M24.00 mi1.00 mi27319+3411624+711624+725827(Top 91%)11049(Top 90%)11049(Top 202%)
40K24.85 mi0.85 mi27283+3611607+1711607+1725800(Top 91%)11043(Top 90%)11043(Top 202%)
25.2M25.20 mi0.35 mi27279+411606+111606+126524(Top 93%)11440(Top 94%)11440(Top 209%)
Finish26.22 mi1.02 mi27281-211613-711613-727073(Top 95%)11664(Top 95%)11664(Top 213%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

27288

Females

11547

F18-39

11547

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

27455

Females

11638

F18-39

11638

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

27288

Females

11547

F18-39

11547

15K→20K

9.3 - 12.4 mi

Top 97%
×5story building
+106ft-86ft

Overall

27614

Females

11761

F18-39

11761

20K→Half

12.4 - 13.1 mi

Top 96%
×2story building
+19ft-37ft

Overall

27389

Females

11640

F18-39

11640

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

27428

Females

11671

F18-39

11671

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

27220

Females

11615

F18-39

11615

30K→20M

18.6 - 20.0 mi

Top 94%
×5story building
+64ft-50ft

Overall

26573

Females

11325

F18-39

11325

20M→21M

20.0 - 21.0 mi

Top 92%
×8story building
+106ft-24ft

Overall

26179

Females

11145

F18-39

11145

21M→35K

21.0 - 21.8 mi

Top 91%
×7story building
+17ft-86ft

Overall

25855

Females

11033

F18-39

11033

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

26253

Females

11226

F18-39

11226

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

25827

Females

11049

F18-39

11049

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25800

Females

11043

F18-39

11043

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

26524

Females

11440

F18-39

11440

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

27073

Females

11664

F18-39

11664

Passing Analysis

Category:
Athletes Passed
963
Passed By
269
Net Change
+694
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27975
5K → 10K2496+243#27975#27732
10K → 15K17123+148#27732#27584
15K → 20K5998-39#27584#27623
20K → Half2111+10#27623#27613
Half → 25K7251+21#27613#27592
25K → 30K8230+52#27592#27540
30K → 20M755+70#27540#27470
20M → 21M504+46#27470#27424
21M → 35K321+31#27424#27393
35K → 23M433+40#27393#27353
23M → 24M428+34#27353#27319
24M → 40K426+36#27319#27283
40K → 25.2M95+4#27283#27279
25.2M → Finish1618-2#27279#27281
TOTALS963269+694
📊

Passing Visuals

Category:
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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