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BOSTON MARATHON 2025

Erica Brecher

Bib: 8176•F

NC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 31%
Gender (Female)
#0 / 12228
Top 14%
Division (F18-39)
#0 / 5469
Top 25%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:02
Rank: #11473
Start → 5K
23:02 | 7:25/mi
10K· 6.21 mi
46:10
Rank: #11511 (-38)
5K → 10K
23:08 | 7:27/mi
15K· 9.32 mi
1:09:19
Rank: #11424 (+87)
10K → 15K
23:09 | 7:27/mi
20K· 12.43 mi
1:32:36
Rank: #11242 (+182)
15K → 20K
23:17 | 7:30/mi
Half· 13.11 mi
1:37:43
Rank: #11250 (-8)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:55:59
Rank: #11039 (+211)
Half → 25K
18:16 | 7:32/mi
30K· 18.64 mi
2:19:49
Rank: #10600 (+439)
25K → 30K
23:50 | 7:40/mi
20M
2:30:18
Rank: #10379 (+221)
30K → 20M
10:29 | 7:43/mi
21M
2:38:19
Rank: #10155 (+224)
20M → 21M
8:01 | 8:01/mi
35K· 21.75 mi
2:43:46
Rank: #10003 (+152)
21M → 35K
5:27 | 7:17/mi
23M
2:53:15
Rank: #9778 (+225)
35K → 23M
9:29 | 7:34/mi
24M
3:00:27
Rank: #9540 (+238)
23M → 24M
7:12 | 7:12/mi
40K· 24.85 mi
3:06:31
Rank: #9276 (+264)
24M → 40K
6:04 | 7:06/mi
25.2M
3:09:10
Rank: #9154 (+122)
40K → 25.2M
2:39 | 7:41/mi
Finish· 26.22 mi
3:15:51
Rank: #8826 (+328)
25.2M → Finish
6:41 | 6:34/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:37:43
Pace7:27 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:38:08
Pace7:29 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:31:3423:027:2523:02
7:25
-
10K
6.21 mi10:54:4246:107:2623:08
7:27
+0:02
15K
9.32 mi11:17:511:09:197:2623:09
7:27
0:00
20K
12.43 mi11:41:081:32:367:2723:17
7:30
+0:03
Half
13.11 mi11:46:151:37:437:275:07
7:30
0:00
25K
15.53 mi12:04:311:55:597:2818:16
7:32
+0:02
30K
18.64 mi12:28:212:19:497:3023:50
7:40
+0:08
20M
20.00 mi12:38:502:30:187:3110:29
7:43
+0:03
21M
21.00 mi12:46:512:38:197:328:01
8:01
+0:18
35K
21.75 mi12:52:182:43:467:325:27
7:17
-0:44
23M
23.00 mi13:01:472:53:157:329:29
7:34
+0:17
24M
24.00 mi13:08:593:00:277:317:12
7:12
-0:22
40K
24.85 mi13:15:033:06:317:306:04
7:06
-0:06
25.2M
25.20 mi13:17:423:09:107:302:39
7:41
+0:35
Finish
26.22 mi13:24:233:15:517:296:41
6:34
-1:07

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

6:34 /mi

Average Pace

7:29 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

25:24

13% of race

Time at Steady Pace

2:05:28

64% of race

Time at Slower Pace

44:59

23% of race

Average Pace: 7:28 /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 mi10:31:3423:027:2523:02
7:25
#11473
10K
6.21 mi10:54:4246:107:2623:08
7:27
#11511
15K
9.32 mi11:17:511:09:197:2623:09
7:27
#11424
20K
12.43 mi11:41:081:32:367:2723:17
7:30
#11242
Half
13.11 mi11:46:151:37:437:275:07
7:30
#11250
25K
15.53 mi12:04:311:55:597:2818:16
7:32
#11039
30K
18.64 mi12:28:212:19:497:3023:50
7:40
#10600
20M
20.00 mi12:38:502:30:187:3110:29
7:43
#10379
21M
21.00 mi12:46:512:38:197:328:01
8:01
#10155
35K
21.75 mi12:52:182:43:467:325:27
7:17
#10003
23M
23.00 mi13:01:472:53:157:329:29
7:34
#9778
24M
24.00 mi13:08:593:00:277:317:12
7:12
#9540
40K
24.85 mi13:15:033:06:317:306:04
7:06
#9276
25.2M
25.20 mi13:17:423:09:107:302:39
7:41
#9154
Finish
26.22 mi13:24:233:15:517:296:41
6:34
#8826
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi114732513251311347(Top 40%)2549(Top 21%)2549(Top 47%)
10K6.21 mi3.10 mi11511-382555-422555-4211606(Top 41%)2609(Top 21%)2609(Top 48%)
15K9.32 mi3.11 mi11424+872536+192536+1911347(Top 40%)2549(Top 21%)2549(Top 47%)
20K12.43 mi3.11 mi11242+1822475+612475+6110718(Top 38%)2321(Top 19%)2321(Top 42%)
Half13.11 mi0.68 mi11250-82472+32472+311722(Top 41%)2761(Top 23%)2761(Top 50%)
25K15.53 mi2.42 mi11039+2112410+622410+6210250(Top 36%)2205(Top 18%)2205(Top 40%)
30K18.64 mi3.11 mi10600+4392256+1542256+1549000(Top 32%)1835(Top 15%)1835(Top 34%)
20M20.00 mi1.36 mi10379+2212187+692187+698469(Top 30%)1738(Top 14%)1738(Top 32%)
21M21.00 mi1.00 mi10155+2242113+742113+747459(Top 26%)1493(Top 12%)1493(Top 27%)
35K21.75 mi0.75 mi10003+1522067+462067+467190(Top 25%)1367(Top 11%)1367(Top 25%)
23M23.00 mi1.25 mi9778+2251995+721995+727099(Top 25%)1443(Top 12%)1443(Top 26%)
24M24.00 mi1.00 mi9540+2381916+791916+795872(Top 21%)1029(Top 8%)1029(Top 19%)
40K24.85 mi0.85 mi9276+2641831+851831+854503(Top 16%)650(Top 5%)650(Top 12%)
25.2M25.20 mi0.35 mi9154+1221795+361795+364373(Top 15%)695(Top 6%)695(Top 13%)
Finish26.22 mi1.02 mi8826+3281693+1021693+1023151(Top 11%)355(Top 3%)355(Top 6%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

11347

Females

2549

F18-39

2549

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

11606

Females

2609

F18-39

2609

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

11347

Females

2549

F18-39

2549

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10718

Females

2321

F18-39

2321

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

11722

Females

2761

F18-39

2761

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

10250

Females

2205

F18-39

2205

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

9000

Females

1835

F18-39

1835

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

8469

Females

1738

F18-39

1738

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7459

Females

1493

F18-39

1493

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

7190

Females

1367

F18-39

1367

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

7099

Females

1443

F18-39

1443

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5872

Females

1029

F18-39

1029

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4503

Females

650

F18-39

650

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4373

Females

695

F18-39

695

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3151

Females

355

F18-39

355

Passing Analysis

Category:
Athletes Passed
3334*
Passed By
687
Net Change
+2647
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11473
5K → 10K231269-38#11473#11511
10K → 15K219132+87#11511#11424
15K → 20K27088+182#11424#11242
20K → Half3341-8#11242#11250
Half → 25K26857+211#11250#11039
25K → 30K48142+439#11039#10600
30K → 20M23918+221#10600#10379
20M → 21M23511+224#10379#10155
21M → 35K1564+152#10155#10003
35K → 23M245*20+225#10003#9778
23M → 24M2413+238#9778#9540
24M → 40K2662+264#9540#9276
40K → 25.2M1220+122#9276#9154
25.2M → Finish3280+328#9154#8826
TOTALS3334*687+2647

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

📊

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