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BOSTON MARATHON 2025

Emily Erdos

Bib: 13183•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 34%
Gender (Female)
#0 / 12228
Top 17%
Division (F18-39)
#0 / 5469
Top 30%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:17
Rank: #9253
Start → 5K
22:17 | 7:10/mi
10K· 6.21 mi
44:29
Rank: #9114 (+139)
5K → 10K
22:12 | 7:09/mi
15K· 9.32 mi
1:06:38
Rank: #8918 (+196)
10K → 15K
22:09 | 7:08/mi
20K· 12.43 mi
1:29:43
Rank: #9158 (-240)
15K → 20K
23:05 | 7:26/mi
Half· 13.11 mi
1:34:50
Rank: #9297 (-139)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:52:40
Rank: #9161 (+136)
Half → 25K
17:50 | 7:21/mi
30K· 18.64 mi
2:16:41
Rank: #9133 (+28)
25K → 30K
24:01 | 7:44/mi
20M
2:27:22
Rank: #9145 (-12)
30K → 20M
10:41 | 7:52/mi
21M
2:35:53
Rank: #9180 (-35)
20M → 21M
8:31 | 8:31/mi
35K· 21.75 mi
2:41:55
Rank: #9294 (-114)
21M → 35K
6:02 | 8:04/mi
23M
2:52:24
Rank: #9462 (-168)
35K → 23M
10:29 | 8:22/mi
24M
3:00:44
Rank: #9640 (-178)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
3:07:48
Rank: #9712 (-72)
24M → 40K
7:04 | 8:16/mi
25.2M
3:10:49
Rank: #9710 (+2)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:18:18
Rank: #9615 (+95)
25.2M → Finish
7:29 | 7:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:50
Pace7:14 /mi
2nd Half
Distance13.11 mi
Time1:43:28
Pace7:54 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3922:177:1022:17
7:10
-
10K
6.21 mi11:13:5144:297:1022:12
7:09
-0:01
15K
9.32 mi11:36:001:06:387:0922:09
7:08
-0:01
20K
12.43 mi11:59:051:29:437:1323:05
7:26
+0:18
Half
13.11 mi12:04:121:34:507:145:07
7:30
+0:04
25K
15.53 mi12:22:021:52:407:1517:50
7:21
-0:09
30K
18.64 mi12:46:032:16:417:2024:01
7:44
+0:23
20M
20.00 mi12:56:442:27:227:2210:41
7:52
+0:08
21M
21.00 mi13:05:152:35:537:258:31
8:31
+0:39
35K
21.75 mi13:11:172:41:557:276:02
8:04
-0:27
23M
23.00 mi13:21:462:52:247:3010:29
8:22
+0:18
24M
24.00 mi13:30:063:00:447:328:20
8:20
-0:02
40K
24.85 mi13:37:103:07:487:337:04
8:16
-0:04
25.2M
25.20 mi13:40:113:10:497:343:01
8:45
+0:29
Finish
26.22 mi13:47:403:18:187:347:29
7:21
-1:24

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

7:08 /mi

Average Pace

7:34 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:02

58% of race

Time at Steady Pace

39:49

20% of race

Time at Slower Pace

43:27

22% of race

Average Pace: 7:34 /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 mi10:51:3922:177:1022:17
7:10
#9253
10K
6.21 mi11:13:5144:297:1022:12
7:09
#9114
15K
9.32 mi11:36:001:06:387:0922:09
7:08
#8918
20K
12.43 mi11:59:051:29:437:1323:05
7:26
#9158
Half
13.11 mi12:04:121:34:507:145:07
7:30
#9297
25K
15.53 mi12:22:021:52:407:1517:50
7:21
#9161
30K
18.64 mi12:46:032:16:417:2024:01
7:44
#9133
20M
20.00 mi12:56:442:27:227:2210:41
7:52
#9145
21M
21.00 mi13:05:152:35:537:258:31
8:31
#9180
35K
21.75 mi13:11:172:41:557:276:02
8:04
#9294
23M
23.00 mi13:21:462:52:247:3010:29
8:22
#9462
24M
24.00 mi13:30:063:00:447:328:20
8:20
#9640
40K
24.85 mi13:37:103:07:487:337:04
8:16
#9712
25.2M
25.20 mi13:40:113:10:497:343:01
8:45
#9710
Finish
26.22 mi13:47:403:18:187:347:29
7:21
#9615
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9253148614868557(Top 30%)1253(Top 10%)1253(Top 23%)
10K6.21 mi3.10 mi9114+1391421+651421+659053(Top 32%)1398(Top 11%)1398(Top 26%)
15K9.32 mi3.11 mi8918+1961360+611360+618557(Top 30%)1253(Top 10%)1253(Top 23%)
20K12.43 mi3.11 mi9158-2401485-1251485-12510176(Top 36%)2043(Top 17%)2043(Top 37%)
Half13.11 mi0.68 mi9297-1391548-631548-6311728(Top 41%)2767(Top 23%)2767(Top 51%)
25K15.53 mi2.42 mi9161+1361526+221526+228810(Top 31%)1561(Top 13%)1561(Top 29%)
30K18.64 mi3.11 mi9133+281569-431569-439416(Top 33%)2010(Top 16%)2010(Top 37%)
20M20.00 mi1.36 mi9145-121602-331602-339473(Top 33%)2198(Top 18%)2198(Top 40%)
21M21.00 mi1.00 mi9180-351654-521654-5210588(Top 37%)2891(Top 24%)2891(Top 53%)
35K21.75 mi0.75 mi9294-1141730-761730-7612699(Top 45%)3982(Top 33%)3982(Top 73%)
23M23.00 mi1.25 mi9462-1681837-1071837-10712508(Top 44%)3993(Top 33%)3993(Top 73%)
24M24.00 mi1.00 mi9640-1781964-1271964-12713482(Top 47%)4548(Top 37%)4548(Top 83%)
40K24.85 mi0.85 mi9712-722033-692033-6911970(Top 42%)3891(Top 32%)3891(Top 71%)
25.2M25.20 mi0.35 mi9710+22052-192052-1910322(Top 36%)3158(Top 26%)3158(Top 58%)
Finish26.22 mi1.02 mi9615+95205220528105(Top 29%)2113(Top 17%)2113(Top 39%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

8557

Females

1253

F18-39

1253

5K→10K

3.1 - 6.2 mi

Top 32%
×5stories
+79ft-138ft

Overall

9053

Females

1398

F18-39

1398

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

8557

Females

1253

F18-39

1253

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

10176

Females

2043

F18-39

2043

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

11728

Females

2767

F18-39

2767

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8810

Females

1561

F18-39

1561

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

9416

Females

2010

F18-39

2010

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

9473

Females

2198

F18-39

2198

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

10588

Females

2891

F18-39

2891

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

12699

Females

3982

F18-39

3982

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

12508

Females

3993

F18-39

3993

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

13482

Females

4548

F18-39

4548

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11970

Females

3891

F18-39

3891

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10322

Females

3158

F18-39

3158

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8105

Females

2113

F18-39

2113

Passing Analysis

Category:
Athletes Passed
1678
Passed By
2040
Net Change
-362
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9253
5K → 10K298159+139#9253#9114
10K → 15K27276+196#9114#8918
15K → 20K103343-240#8918#9158
20K → Half5144-139#9158#9297
Half → 25K21983+136#9297#9161
25K → 30K239211+28#9161#9133
30K → 20M105117-12#9133#9145
20M → 21M86121-35#9145#9180
21M → 35K30144-114#9180#9294
35K → 23M72240-168#9294#9462
23M → 24M34212-178#9462#9640
24M → 40K52124-72#9640#9712
40K → 25.2M4240+2#9712#9710
25.2M → Finish12126+95#9710#9615
TOTALS16782040-362
📊

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