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BOSTON MARATHON 2025

Erin Jaffke

Bib: 6977•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 26%
Gender (Female)
#0 / 12228
Top 9%
Division (F18-39)
#0 / 5469
Top 17%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:33
Rank: #9975
Start → 5K
22:33 | 7:15/mi
10K· 6.21 mi
45:09
Rank: #10049 (-74)
5K → 10K
22:36 | 7:16/mi
15K· 9.32 mi
1:07:53
Rank: #10071 (-22)
10K → 15K
22:44 | 7:19/mi
20K· 12.43 mi
1:30:36
Rank: #9782 (+289)
15K → 20K
22:43 | 7:19/mi
Half· 13.11 mi
1:35:33
Rank: #9767 (+15)
20K → Half
4:57 | 7:15/mi
25K· 15.53 mi
1:53:10
Rank: #9445 (+322)
Half → 25K
17:37 | 7:16/mi
30K· 18.64 mi
2:16:11
Rank: #8889 (+556)
25K → 30K
23:01 | 7:25/mi
20M
2:26:06
Rank: #8565 (+324)
30K → 20M
9:55 | 7:18/mi
21M
2:33:48
Rank: #8329 (+236)
20M → 21M
7:42 | 7:42/mi
35K· 21.75 mi
2:39:38
Rank: #8395 (-66)
21M → 35K
5:50 | 7:48/mi
23M
2:48:32
Rank: #8043 (+352)
35K → 23M
8:54 | 7:06/mi
24M
2:55:30
Rank: #7817 (+226)
23M → 24M
6:58 | 6:58/mi
40K· 24.85 mi
3:01:32
Rank: #7617 (+200)
24M → 40K
6:02 | 7:03/mi
25.2M
3:04:09
Rank: #7530 (+87)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
3:11:11
Rank: #7370 (+160)
25.2M → Finish
7:02 | 6:54/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:35:33
Pace7:17 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:35:38
Pace7:18 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:3822:337:1522:33
7:15
-
10K
6.21 mi11:11:1445:097:1622:36
7:16
+0:01
15K
9.32 mi11:33:581:07:537:1722:44
7:19
+0:03
20K
12.43 mi11:56:411:30:367:1722:43
7:19
0:00
Half
13.11 mi12:01:381:35:337:174:57
7:15
-0:04
25K
15.53 mi12:19:151:53:107:1717:37
7:16
+0:01
30K
18.64 mi12:42:162:16:117:1823:01
7:25
+0:09
20M
20.00 mi12:52:112:26:067:189:55
7:18
-0:07
21M
21.00 mi12:59:532:33:487:197:42
7:42
+0:24
35K
21.75 mi13:05:432:39:387:205:50
7:48
+0:06
23M
23.00 mi13:14:372:48:327:208:54
7:06
-0:42
24M
24.00 mi13:21:352:55:307:196:58
6:58
-0:08
40K
24.85 mi13:27:373:01:327:186:02
7:03
+0:05
25.2M
25.20 mi13:30:143:04:097:182:37
7:35
+0:32
Finish
26.22 mi13:37:163:11:117:187:02
6:54
-0:41

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

6:54 /mi

Average Pace

7:18 /mi

Slowest Pace

7:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:57:39

93% of race

Time at Steady Pace

13:32

7% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:17 /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 mi10:48:3822:337:1522:33
7:15
#9975
10K
6.21 mi11:11:1445:097:1622:36
7:16
#10049
15K
9.32 mi11:33:581:07:537:1722:44
7:19
#10071
20K
12.43 mi11:56:411:30:367:1722:43
7:19
#9782
Half
13.11 mi12:01:381:35:337:174:57
7:15
#9767
25K
15.53 mi12:19:151:53:107:1717:37
7:16
#9445
30K
18.64 mi12:42:162:16:117:1823:01
7:25
#8889
20M
20.00 mi12:52:112:26:067:189:55
7:18
#8565
21M
21.00 mi12:59:532:33:487:197:42
7:42
#8329
35K
21.75 mi13:05:432:39:387:205:50
7:48
#8395
23M
23.00 mi13:14:372:48:327:208:54
7:06
#8043
24M
24.00 mi13:21:352:55:307:196:58
6:58
#7817
40K
24.85 mi13:27:373:01:327:186:02
7:03
#7617
25.2M
25.20 mi13:30:143:04:097:182:37
7:35
#7530
Finish
26.22 mi13:37:163:11:117:187:02
6:54
#7370
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi99751791179110132(Top 36%)1940(Top 16%)1940(Top 35%)
10K6.21 mi3.10 mi10049-741829-381829-3810148(Top 36%)1885(Top 15%)1885(Top 34%)
15K9.32 mi3.11 mi10071-221871-421871-4210132(Top 36%)1940(Top 16%)1940(Top 35%)
20K12.43 mi3.11 mi9782+2891766+1051766+1059140(Top 32%)1582(Top 13%)1582(Top 29%)
Half13.11 mi0.68 mi9767+151760+61760+69618(Top 34%)1746(Top 14%)1746(Top 32%)
25K15.53 mi2.42 mi9445+3221652+1081652+1088115(Top 29%)1259(Top 10%)1259(Top 23%)
30K18.64 mi3.11 mi8889+5561462+1901462+1907107(Top 25%)1054(Top 9%)1054(Top 19%)
20M20.00 mi1.36 mi8565+3241362+1001362+1005811(Top 20%)739(Top 6%)739(Top 14%)
21M21.00 mi1.00 mi8329+2361296+661296+665671(Top 20%)813(Top 7%)813(Top 15%)
35K21.75 mi0.75 mi8395-661349-531349-5310807(Top 38%)2990(Top 24%)2990(Top 55%)
23M23.00 mi1.25 mi8043+3521260+891260+894420(Top 16%)520(Top 4%)520(Top 10%)
24M24.00 mi1.00 mi7817+2261208+521208+524482(Top 16%)588(Top 5%)588(Top 11%)
40K24.85 mi0.85 mi7617+2001169+391169+394263(Top 15%)578(Top 5%)578(Top 11%)
25.2M25.20 mi0.35 mi7530+871152+171152+173915(Top 14%)549(Top 4%)549(Top 10%)
Finish26.22 mi1.02 mi7370+1601120+321120+325136(Top 18%)909(Top 7%)909(Top 17%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

10132

Females

1940

F18-39

1940

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

10148

Females

1885

F18-39

1885

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

10132

Females

1940

F18-39

1940

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

9140

Females

1582

F18-39

1582

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9618

Females

1746

F18-39

1746

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

8115

Females

1259

F18-39

1259

25K→30K

15.5 - 18.6 mi

Top 25%
×9stories
+181ft-148ft

Overall

7107

Females

1054

F18-39

1054

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5811

Females

739

F18-39

739

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5671

Females

813

F18-39

813

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

10807

Females

2990

F18-39

2990

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4420

Females

520

F18-39

520

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4482

Females

588

F18-39

588

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4263

Females

578

F18-39

578

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3915

Females

549

F18-39

549

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

5136

Females

909

F18-39

909

Passing Analysis

Category:
Athletes Passed
3313*
Passed By
706
Net Change
+2605
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9975
5K → 10K200272-74#9975#10049
10K → 15K165187-22#10049#10071
15K → 20K341*52+289#10071#9782
20K → Half4025+15#9782#9767
Half → 25K34018+322#9767#9445
25K → 30K56913+556#9445#8889
30K → 20M3284+324#8889#8565
20M → 21M2426+236#8565#8329
21M → 35K44110-66#8329#8395
35K → 23M3553+352#8395#8043
23M → 24M2282+226#8043#7817
24M → 40K2044+200#7817#7617
40K → 25.2M903+87#7617#7530
25.2M → Finish1677+160#7530#7370
TOTALS3313*706+2605

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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