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BOSTON MARATHON 2025

Josie Ascione

Bib: 28453•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

Start
0:00:00
Race begins
5K· 3.11 mi
27:17
Rank: #21429
Start → 5K
8:47/mi
27:17 split
10K· 6.21 mi
54:06
Rank: #20949 (+480)
5K → 10K
8:38/mi
26:49 split
15K· 9.32 mi
1:20:50
Rank: #20600 (+349)
10K → 15K
8:36/mi
26:44 split
20K· 12.43 mi
1:47:59
Rank: #20350 (+250)
15K → 20K
8:44/mi
27:09 split
Half· 13.11 mi
1:53:50
Rank: #20317 (+33)
20K → Half
8:34/mi
5:51 split
25K· 15.53 mi
2:15:28
Rank: #20181 (+136)
Half → 25K
8:55/mi
21:38 split
30K· 18.64 mi
2:45:41
Rank: #20322 (-141)
25K → 30K
9:44/mi
30:13 split
20M
3:00:28
Rank: #20662 (-340)
30K → 20M
10:53/mi
14:47 split
21M
3:14:39
Rank: #21402 (-740)
20M → 21M
14:11/mi
14:11 split
35K· 21.75 mi
3:23:19
Rank: #21647 (-245)
21M → 35K
11:35/mi
8:40 split
23M
3:40:20
Rank: #22218 (-571)
35K → 23M
13:35/mi
17:01 split
24M
3:53:26
Rank: #22563 (-345)
23M → 24M
13:06/mi
13:06 split
40K· 24.85 mi
4:06:30
Rank: #23033 (-470)
24M → 40K
15:17/mi
13:04 split
25.2M
4:10:43
Rank: #23062 (-29)
40K → 25.2M
12:14/mi
4:13 split
Finish· 26.22 mi
4:21:57
Rank: #23159 (-97)
25.2M → Finish
11:01/mi
11:14 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:50
Pace8:41 /mi
2nd Half
Distance13.11 mi
Time2:28:07
Pace11:18 /mi
📊Positive Split: 30.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:2727:178:4727:17
8:47
-
10K
6.21 mi12:11:1654:068:4226:49
8:38
-0:09
15K
9.32 mi12:38:001:20:508:4026:44
8:36
-0:02
20K
12.43 mi13:05:091:47:598:4127:09
8:44
+0:08
Half
13.11 mi13:11:001:53:508:415:51
8:34
-0:10
25K
15.53 mi13:32:382:15:288:4321:38
8:55
+0:21
30K
18.64 mi14:02:512:45:418:5330:13
9:44
+0:49
20M
20.00 mi14:17:383:00:289:0114:47
10:53
+1:09
21M
21.00 mi14:31:493:14:399:1614:11
14:11
+3:18
35K
21.75 mi14:40:293:23:199:218:40
11:35
-2:36
23M
23.00 mi14:57:303:40:209:3517:01
13:35
+2:00
24M
24.00 mi15:10:363:53:269:4413:06
13:06
-0:29
40K
24.85 mi15:23:404:06:309:5513:04
15:17
+2:11
25.2M
25.20 mi15:27:534:10:439:574:13
12:14
-3:03
Finish
26.22 mi15:39:074:21:5710:0011:14
11:01
-1:13

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

8:34 /mi

Average Pace

10:00 /mi

Slowest Pace

15:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:41

63% of race

Time at Steady Pace

34:41

13% of race

Time at Slower Pace

1:01:35

24% of race

Average Pace: 9:59 /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 mi11:44:2727:178:4727:17
8:47
#21429
10K
6.21 mi12:11:1654:068:4226:49
8:38
#20949
15K
9.32 mi12:38:001:20:508:4026:44
8:36
#20600
20K
12.43 mi13:05:091:47:598:4127:09
8:44
#20350
Half
13.11 mi13:11:001:53:508:415:51
8:34
#20317
25K
15.53 mi13:32:382:15:288:4321:38
8:55
#20181
30K
18.64 mi14:02:512:45:418:5330:13
9:44
#20322
20M
20.00 mi14:17:383:00:289:0114:47
10:53
#20662
21M
21.00 mi14:31:493:14:399:1614:11
14:11
#21402
35K
21.75 mi14:40:293:23:199:218:40
11:35
#21647
23M
23.00 mi14:57:303:40:209:3517:01
13:35
#22218
24M
24.00 mi15:10:363:53:269:4413:06
13:06
#22563
40K
24.85 mi15:23:404:06:309:5513:04
15:17
#23033
25.2M
25.20 mi15:27:534:10:439:574:13
12:14
#23062
Finish
26.22 mi15:39:074:21:5710:0011:14
11:01
#23159
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi214298322832219963(Top 70%)7422(Top 61%)7422(Top 136%)
10K6.21 mi3.10 mi20949+4808026+2968026+29620527(Top 72%)7760(Top 63%)7760(Top 142%)
15K9.32 mi3.11 mi20600+3497811+2157811+21519963(Top 70%)7422(Top 61%)7422(Top 136%)
20K12.43 mi3.11 mi20350+2507676+1357676+13519636(Top 69%)7289(Top 60%)7289(Top 133%)
Half13.11 mi0.68 mi20317+337660+167660+1619760(Top 70%)7348(Top 60%)7348(Top 134%)
25K15.53 mi2.42 mi20181+1367592+687592+6819551(Top 69%)7294(Top 60%)7294(Top 133%)
30K18.64 mi3.11 mi20322-1417715-1237715-12320773(Top 73%)8105(Top 66%)8105(Top 148%)
20M20.00 mi1.36 mi20662-3407924-2097924-20923346(Top 82%)9598(Top 78%)9598(Top 175%)
21M21.00 mi1.00 mi21402-7408337-4138337-41326430(Top 93%)11269(Top 92%)11269(Top 206%)
35K21.75 mi0.75 mi21647-2458479-1428479-14225246(Top 89%)10712(Top 88%)10712(Top 196%)
23M23.00 mi1.25 mi22218-5718842-3638842-36326965(Top 95%)11585(Top 95%)11585(Top 212%)
24M24.00 mi1.00 mi22563-3459051-2099051-20926966(Top 95%)11616(Top 95%)11616(Top 212%)
40K24.85 mi0.85 mi23033-4709324-2739324-27327888(Top 98%)12051(Top 99%)12051(Top 220%)
25.2M25.20 mi0.35 mi23062-299342-189342-1823680(Top 83%)10012(Top 82%)10012(Top 183%)
Finish26.22 mi1.02 mi23159-979412-709412-7025419(Top 89%)10862(Top 89%)10862(Top 199%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

19963

Females

7422

F18-39

7422

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

20527

Females

7760

F18-39

7760

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

19963

Females

7422

F18-39

7422

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

19636

Females

7289

F18-39

7289

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

19760

Females

7348

F18-39

7348

Half→25K

13.1 - 15.5 mi

Top 69%
×4stories
+66ft-88ft

Overall

19551

Females

7294

F18-39

7294

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

20773

Females

8105

F18-39

8105

30K→20M

18.6 - 20.0 mi

Top 82%
×5stories
+64ft-50ft

Overall

23346

Females

9598

F18-39

9598

20M→21M

20.0 - 21.0 mi

Top 93%
×8stories
+106ft-24ft

Overall

26430

Females

11269

F18-39

11269

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

25246

Females

10712

F18-39

10712

35K→23M

21.8 - 23.0 mi

Top 95%
×5stories
+23ft-63ft

Overall

26965

Females

11585

F18-39

11585

23M→24M

23.0 - 24.0 mi

Top 95%
×6stories
+12ft-82ft

Overall

26966

Females

11616

F18-39

11616

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

27888

Females

12051

F18-39

12051

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23680

Females

10012

F18-39

10012

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2stories
+22ft-21ft

Overall

25419

Females

10862

F18-39

10862

Passing Analysis

Category:
Athletes Passed
1901
Passed By
3631
Net Change
-1730
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21429
5K → 10K596116+480#21429#20949
10K → 15K41263+349#20949#20600
15K → 20K31363+250#20600#20350
20K → Half5219+33#20350#20317
Half → 25K22892+136#20317#20181
25K → 30K187328-141#20181#20322
30K → 20M35375-340#20322#20662
20M → 21M10750-740#20662#21402
21M → 35K12257-245#21402#21647
35K → 23M16587-571#21647#22218
23M → 24M14359-345#22218#22563
24M → 40K1471-470#22563#23033
40K → 25.2M534-29#23033#23062
25.2M → Finish20117-97#23062#23159
TOTALS19013631-1730
📊

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