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BOSTON MARATHON 2025

Erin Ross

Bib: 13671•F

DC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 24%
Gender (Female)
#0 / 12228
Top 8%
Division (F18-39)
#0 / 5469
Top 15%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:25
Rank: #7042
Start → 5K
21:25 | 6:54/mi
10K· 6.21 mi
43:53
Rank: #8371 (-1329)
5K → 10K
22:28 | 7:14/mi
15K· 9.32 mi
1:06:26
Rank: #8725 (-354)
10K → 15K
22:33 | 7:15/mi
20K· 12.43 mi
1:28:48
Rank: #8509 (+216)
15K → 20K
22:22 | 7:12/mi
Half· 13.11 mi
1:33:36
Rank: #8460 (+49)
20K → Half
4:48 | 7:02/mi
25K· 15.53 mi
1:50:46
Rank: #8149 (+311)
Half → 25K
17:10 | 7:05/mi
30K· 18.64 mi
2:13:13
Rank: #7649 (+500)
25K → 30K
22:27 | 7:14/mi
20M
2:23:13
Rank: #7463 (+186)
30K → 20M
10:00 | 7:22/mi
21M
2:31:02
Rank: #7334 (+129)
20M → 21M
7:49 | 7:49/mi
35K· 21.75 mi
2:36:04
Rank: #7168 (+166)
21M → 35K
5:02 | 6:44/mi
23M
2:45:22
Rank: #7043 (+125)
35K → 23M
9:18 | 7:26/mi
24M
2:52:43
Rank: #6990 (+53)
23M → 24M
7:21 | 7:21/mi
40K· 24.85 mi
2:59:13
Rank: #6945 (+45)
24M → 40K
6:30 | 7:36/mi
25.2M
3:01:54
Rank: #6880 (+65)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
3:09:31
Rank: #6920 (-40)
25.2M → Finish
7:37 | 7:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:36
Pace7:08 /mi
2nd Half
Distance13.11 mi
Time1:35:55
Pace7:19 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:1721:256:5421:25
6:54
-
10K
6.21 mi11:12:4543:537:0422:28
7:14
+0:20
15K
9.32 mi11:35:181:06:267:0822:33
7:15
+0:01
20K
12.43 mi11:57:401:28:487:0922:22
7:12
-0:03
Half
13.11 mi12:02:281:33:367:084:48
7:02
-0:10
25K
15.53 mi12:19:381:50:467:0817:10
7:05
+0:03
30K
18.64 mi12:42:052:13:137:0922:27
7:14
+0:09
20M
20.00 mi12:52:052:23:137:1010:00
7:22
+0:08
21M
21.00 mi12:59:542:31:027:127:49
7:49
+0:27
35K
21.75 mi13:04:562:36:047:115:02
6:44
-1:05
23M
23.00 mi13:14:142:45:227:119:18
7:26
+0:42
24M
24.00 mi13:21:352:52:437:127:21
7:21
-0:05
40K
24.85 mi13:28:052:59:137:136:30
7:36
+0:15
25.2M
25.20 mi13:30:463:01:547:132:41
7:47
+0:11
Finish
26.22 mi13:38:233:09:317:147:37
7:28
-0:19

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

6:44 /mi

Average Pace

7:14 /mi

Slowest Pace

7:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:36

82% of race

Time at Steady Pace

33:55

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:14 /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 mi10:50:1721:256:5421:25
6:54
#7042
10K
6.21 mi11:12:4543:537:0422:28
7:14
#8371
15K
9.32 mi11:35:181:06:267:0822:33
7:15
#8725
20K
12.43 mi11:57:401:28:487:0922:22
7:12
#8509
Half
13.11 mi12:02:281:33:367:084:48
7:02
#8460
25K
15.53 mi12:19:381:50:467:0817:10
7:05
#8149
30K
18.64 mi12:42:052:13:137:0922:27
7:14
#7649
20M
20.00 mi12:52:052:23:137:1010:00
7:22
#7463
21M
21.00 mi12:59:542:31:027:127:49
7:49
#7334
35K
21.75 mi13:04:562:36:047:115:02
6:44
#7168
23M
23.00 mi13:14:142:45:227:119:18
7:26
#7043
24M
24.00 mi13:21:352:52:437:127:21
7:21
#6990
40K
24.85 mi13:28:052:59:137:136:30
7:36
#6945
25.2M
25.20 mi13:30:463:01:547:132:41
7:47
#6880
Finish
26.22 mi13:38:233:09:317:147:37
7:28
#6920
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi70426966969631(Top 34%)1712(Top 14%)1712(Top 31%)
10K6.21 mi3.10 mi8371-13291134-4381134-4389754(Top 34%)1708(Top 14%)1708(Top 31%)
15K9.32 mi3.11 mi8725-3541282-1481282-1489631(Top 34%)1712(Top 14%)1712(Top 31%)
20K12.43 mi3.11 mi8509+2161224+581224+588214(Top 29%)1189(Top 10%)1189(Top 22%)
Half13.11 mi0.68 mi8460+491205+191205+197881(Top 28%)1040(Top 9%)1040(Top 19%)
25K15.53 mi2.42 mi8149+3111112+931112+936867(Top 24%)827(Top 7%)827(Top 15%)
30K18.64 mi3.11 mi7649+500974+138974+1386052(Top 21%)693(Top 6%)693(Top 13%)
20M20.00 mi1.36 mi7463+186944+30944+306157(Top 22%)843(Top 7%)843(Top 15%)
21M21.00 mi1.00 mi7334+129930+14930+146314(Top 22%)1031(Top 8%)1031(Top 19%)
35K21.75 mi0.75 mi7168+166902+28902+283750(Top 13%)364(Top 3%)364(Top 7%)
23M23.00 mi1.25 mi7043+1259029026223(Top 22%)1102(Top 9%)1102(Top 20%)
24M24.00 mi1.00 mi6990+53917-15917-156739(Top 24%)1348(Top 11%)1348(Top 25%)
40K24.85 mi0.85 mi6945+45924-7924-77447(Top 26%)1725(Top 14%)1725(Top 32%)
25.2M25.20 mi0.35 mi6880+65914+10914+104860(Top 17%)827(Top 7%)827(Top 15%)
Finish26.22 mi1.02 mi6920-40961-47961-479016(Top 32%)2534(Top 21%)2534(Top 46%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

9631

Females

1712

F18-39

1712

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

9754

Females

1708

F18-39

1708

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

9631

Females

1712

F18-39

1712

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

8214

Females

1189

F18-39

1189

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

7881

Females

1040

F18-39

1040

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6867

Females

827

F18-39

827

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

6052

Females

693

F18-39

693

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

6157

Females

843

F18-39

843

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

6314

Females

1031

F18-39

1031

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3750

Females

364

F18-39

364

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

6223

Females

1102

F18-39

1102

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6739

Females

1348

F18-39

1348

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7447

Females

1725

F18-39

1725

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4860

Females

827

F18-39

827

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

9016

Females

2534

F18-39

2534

Passing Analysis

Category:
Athletes Passed
2212
Passed By
2090
Net Change
+122
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7042
5K → 10K181347-1329#7042#8371
10K → 15K69423-354#8371#8725
15K → 20K28468+216#8725#8509
20K → Half6011+49#8509#8460
Half → 25K3209+311#8460#8149
25K → 30K5088+500#8149#7649
30K → 20M20014+186#7649#7463
20M → 21M14617+129#7463#7334
21M → 35K1660+166#7334#7168
35K → 23M15227+125#7168#7043
23M → 24M8936+53#7043#6990
24M → 40K7934+45#6990#6945
40K → 25.2M683+65#6945#6880
25.2M → Finish5393-40#6880#6920
TOTALS22122090+122
📊

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