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BOSTON MARATHON 2025

Jayna Leach

Bib: 12992•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
22:57
Rank: #11223
Start → 5K
22:57 | 7:23/mi
10K· 6.21 mi
46:07
Rank: #11444 (-221)
5K → 10K
23:10 | 7:27/mi
15K· 9.32 mi
1:09:04
Rank: #11165 (+279)
10K → 15K
22:57 | 7:23/mi
20K· 12.43 mi
1:32:21
Rank: #11034 (+131)
15K → 20K
23:17 | 7:30/mi
Half· 13.11 mi
1:37:29
Rank: #11099 (-65)
20K → Half
5:08 | 7:31/mi
25K· 15.53 mi
1:59:22
Rank: #12903 (-1804)
Half → 25K
21:53 | 9:02/mi
30K· 18.64 mi
2:28:10
Rank: #14275 (-1372)
25K → 30K
28:48 | 9:16/mi
20M
2:41:38
Rank: #15003 (-728)
30K → 20M
13:28 | 9:55/mi
21M
2:55:10
Rank: #16340 (-1337)
20M → 21M
13:32 | 13:32/mi
35K· 21.75 mi
3:01:32
Rank: #16274 (+66)
21M → 35K
6:22 | 8:31/mi
23M
3:14:39
Rank: #16776 (-502)
35K → 23M
13:07 | 10:29/mi
24M
3:25:09
Rank: #17205 (-429)
23M → 24M
10:30 | 10:30/mi
40K· 24.85 mi
3:33:46
Rank: #17417 (-212)
24M → 40K
8:37 | 10:05/mi
25.2M
3:37:17
Rank: #17433 (-16)
40K → 25.2M
3:31 | 10:12/mi
Finish· 26.22 mi
3:46:37
Rank: #17519 (-86)
25.2M → Finish
9:20 | 9:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:29
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time2:09:08
Pace9:51 /mi
📊Positive Split: 32.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:2522:577:2322:57
7:23
-
10K
6.21 mi11:18:3546:077:2523:10
7:27
+0:04
15K
9.32 mi11:41:321:09:047:2522:57
7:23
-0:04
20K
12.43 mi12:04:491:32:217:2623:17
7:30
+0:07
Half
13.11 mi12:09:571:37:297:265:08
7:31
+0:01
25K
15.53 mi12:31:501:59:227:4121:53
9:02
+1:31
30K
18.64 mi13:00:382:28:107:5728:48
9:16
+0:14
20M
20.00 mi13:14:062:41:388:0513:28
9:55
+0:39
21M
21.00 mi13:27:382:55:108:2013:32
13:32
+3:37
35K
21.75 mi13:34:003:01:328:216:22
8:31
-5:01
23M
23.00 mi13:47:073:14:398:2813:07
10:29
+1:58
24M
24.00 mi13:57:373:25:098:3310:30
10:30
+0:01
40K
24.85 mi14:06:143:33:468:368:37
10:05
-0:25
25.2M
25.20 mi14:09:453:37:178:373:31
10:12
+0:07
Finish
26.22 mi14:19:053:46:378:399:20
9:10
-1:02

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

7:23 /mi

Average Pace

8:39 /mi

Slowest Pace

13:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:29

43% of race

Time at Steady Pace

1:19:51

35% of race

Time at Slower Pace

49:17

22% of race

Average Pace: 8:39 /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 mi10:55:2522:577:2322:57
7:23
#11223
10K
6.21 mi11:18:3546:077:2523:10
7:27
#11444
15K
9.32 mi11:41:321:09:047:2522:57
7:23
#11165
20K
12.43 mi12:04:491:32:217:2623:17
7:30
#11034
Half
13.11 mi12:09:571:37:297:265:08
7:31
#11099
25K
15.53 mi12:31:501:59:227:4121:53
9:02
#12903
30K
18.64 mi13:00:382:28:107:5728:48
9:16
#14275
20M
20.00 mi13:14:062:41:388:0513:28
9:55
#15003
21M
21.00 mi13:27:382:55:108:2013:32
13:32
#16340
35K
21.75 mi13:34:003:01:328:216:22
8:31
#16274
23M
23.00 mi13:47:073:14:398:2813:07
10:29
#16776
24M
24.00 mi13:57:373:25:098:3310:30
10:30
#17205
40K
24.85 mi14:06:143:33:468:368:37
10:05
#17417
25.2M
25.20 mi14:09:453:37:178:373:31
10:12
#17433
Finish
26.22 mi14:19:053:46:378:399:20
9:10
#17519
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi112232390239010776(Top 38%)2263(Top 19%)2263(Top 41%)
10K6.21 mi3.10 mi11444-2212526-1362526-13611705(Top 41%)2673(Top 22%)2673(Top 49%)
15K9.32 mi3.11 mi11165+2792400+1262400+12610776(Top 38%)2263(Top 19%)2263(Top 41%)
20K12.43 mi3.11 mi11034+1312359+412359+4110741(Top 38%)2344(Top 19%)2344(Top 43%)
Half13.11 mi0.68 mi11099-652398-392398-3912039(Top 42%)2989(Top 24%)2989(Top 55%)
25K15.53 mi2.42 mi12903-18043422-10243422-102420023(Top 70%)7544(Top 62%)7544(Top 138%)
30K18.64 mi3.11 mi14275-13724267-8454267-84518976(Top 67%)7103(Top 58%)7103(Top 130%)
20M20.00 mi1.36 mi15003-7284704-4374704-43720639(Top 73%)8158(Top 67%)8158(Top 149%)
21M21.00 mi1.00 mi16340-13375491-7875491-78725711(Top 91%)10909(Top 89%)10909(Top 199%)
35K21.75 mi0.75 mi16274+665477+145477+1415579(Top 55%)5569(Top 46%)5569(Top 102%)
23M23.00 mi1.25 mi16776-5025799-3225799-32221956(Top 77%)9040(Top 74%)9040(Top 165%)
24M24.00 mi1.00 mi17205-4296080-2816080-28122819(Top 80%)9546(Top 78%)9546(Top 175%)
40K24.85 mi0.85 mi17417-2126228-1486228-14820718(Top 73%)8514(Top 70%)8514(Top 156%)
25.2M25.20 mi0.35 mi17433-166245-176245-1717894(Top 63%)7072(Top 58%)7072(Top 129%)
Finish26.22 mi1.02 mi17519-866323-786323-7819788(Top 70%)8027(Top 66%)8027(Top 147%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10776

Females

2263

F18-39

2263

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

11705

Females

2673

F18-39

2673

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10776

Females

2263

F18-39

2263

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10741

Females

2344

F18-39

2344

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

12039

Females

2989

F18-39

2989

Half→25K

13.1 - 15.5 mi

Top 70%
×4stories
+66ft-88ft

Overall

20023

Females

7544

F18-39

7544

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

18976

Females

7103

F18-39

7103

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

20639

Females

8158

F18-39

8158

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

25711

Females

10909

F18-39

10909

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

15579

Females

5569

F18-39

5569

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

21956

Females

9040

F18-39

9040

23M→24M

23.0 - 24.0 mi

Top 80%
×6stories
+12ft-82ft

Overall

22819

Females

9546

F18-39

9546

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20718

Females

8514

F18-39

8514

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

17894

Females

7072

F18-39

7072

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

19788

Females

8027

F18-39

8027

Passing Analysis

Category:
Athletes Passed
1082
Passed By
7378
Net Change
-6296
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11223
5K → 10K165386-221#11223#11444
10K → 15K34667+279#11444#11165
15K → 20K231100+131#11165#11034
20K → Half1984-65#11034#11099
Half → 25K151819-1804#11099#12903
25K → 30K501422-1372#12903#14275
30K → 20M23751-728#14275#15003
20M → 21M41341-1337#15003#16340
21M → 35K9024+66#16340#16274
35K → 23M27529-502#16274#16776
23M → 24M18447-429#16776#17205
24M → 40K29241-212#17205#17417
40K → 25.2M2440-16#17417#17433
25.2M → Finish41127-86#17433#17519
TOTALS10827378-6296
📊

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