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BOSTON MARATHON 2025

Emma Boyd

Bib: 9314•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 12%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:51
Rank: #8085
Start → 5K
7:02/mi
21:51 split
10K· 6.21 mi
43:17
Rank: #7635 (+450)
5K → 10K
6:54/mi
21:26 split
15K· 9.32 mi
1:04:07
Rank: #6909 (+726)
10K → 15K
6:42/mi
20:50 split
20K· 12.43 mi
1:24:42
Rank: #6086 (+823)
15K → 20K
6:38/mi
20:35 split
Half· 13.11 mi
1:29:06
Rank: #5926 (+160)
20K → Half
6:27/mi
4:24 split
25K· 15.53 mi
1:44:52
Rank: #5282 (+644)
Half → 25K
6:30/mi
15:46 split
30K· 18.64 mi
2:05:51
Rank: #4761 (+521)
25K → 30K
6:45/mi
20:59 split
20M
2:15:03
Rank: #4540 (+221)
30K → 20M
6:46/mi
9:12 split
21M
2:22:09
Rank: #4350 (+190)
20M → 21M
7:06/mi
7:06 split
35K· 21.75 mi
2:26:58
Rank: #4223 (+127)
21M → 35K
6:26/mi
4:49 split
23M
2:35:17
Rank: #4032 (+191)
35K → 23M
6:39/mi
8:19 split
24M
2:41:39
Rank: #3855 (+177)
23M → 24M
6:22/mi
6:22 split
40K· 24.85 mi
2:47:11
Rank: #3706 (+149)
24M → 40K
6:28/mi
5:32 split
25.2M
2:49:38
Rank: #3637 (+69)
40K → 25.2M
7:06/mi
2:27 split
Finish· 26.22 mi
2:55:58
Rank: #3482 (+155)
25.2M → Finish
6:13/mi
6:20 split

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:29:06
Pace6:48 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:26:52
Pace6:38 /mi
📊Negative Split: 2.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:2421:517:0221:51
7:02
-
10K
6.21 mi11:08:5043:176:5821:26
6:54
-0:08
15K
9.32 mi11:29:401:04:076:5320:50
6:42
-0:12
20K
12.43 mi11:50:151:24:426:4920:35
6:38
-0:04
Half
13.11 mi11:54:391:29:066:484:24
6:27
-0:11
25K
15.53 mi12:10:251:44:526:4515:46
6:30
+0:03
30K
18.64 mi12:31:242:05:516:4520:59
6:45
+0:15
20M
20.00 mi12:40:362:15:036:459:12
6:46
+0:01
21M
21.00 mi12:47:422:22:096:467:06
7:06
+0:20
35K
21.75 mi12:52:312:26:586:454:49
6:26
-0:40
23M
23.00 mi13:00:502:35:176:458:19
6:39
+0:13
24M
24.00 mi13:07:122:41:396:446:22
6:22
-0:17
40K
24.85 mi13:12:442:47:116:445:32
6:28
+0:06
25.2M
25.20 mi13:15:112:49:386:442:27
7:06
+0:38
Finish
26.22 mi13:21:312:55:586:436:20
6:13
-0:53

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

6:13 /mi

Average Pace

6:43 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:08

70% of race

Time at Steady Pace

52:50

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:43 /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 mi10:47:2421:517:0221:51
7:02
#8085
10K
6.21 mi11:08:5043:176:5821:26
6:54
#7635
15K
9.32 mi11:29:401:04:076:5320:50
6:42
#6909
20K
12.43 mi11:50:151:24:426:4920:35
6:38
#6086
Half
13.11 mi11:54:391:29:066:484:24
6:27
#5926
25K
15.53 mi12:10:251:44:526:4515:46
6:30
#5282
30K
18.64 mi12:31:242:05:516:4520:59
6:45
#4761
20M
20.00 mi12:40:362:15:036:459:12
6:46
#4540
21M
21.00 mi12:47:422:22:096:467:06
7:06
#4350
35K
21.75 mi12:52:312:26:586:454:49
6:26
#4223
23M
23.00 mi13:00:502:35:176:458:19
6:39
#4032
24M
24.00 mi13:07:122:41:396:446:22
6:22
#3855
40K
24.85 mi13:12:442:47:116:445:32
6:28
#3706
25.2M
25.20 mi13:15:112:49:386:442:27
7:06
#3637
Finish
26.22 mi13:21:312:55:586:436:20
6:13
#3482
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8085100610065143(Top 18%)365(Top 3%)365(Top 7%)
10K6.21 mi3.10 mi7635+450867+139867+1397231(Top 25%)755(Top 6%)755(Top 14%)
15K9.32 mi3.11 mi6909+726684+183684+1835143(Top 18%)365(Top 3%)365(Top 7%)
20K12.43 mi3.11 mi6086+823518+166518+1663879(Top 14%)214(Top 2%)214(Top 4%)
Half13.11 mi0.68 mi5926+160487+31487+313438(Top 12%)173(Top 1%)173(Top 3%)
25K15.53 mi2.42 mi5282+644397+90397+902922(Top 10%)136(Top 1%)136(Top 2%)
30K18.64 mi3.11 mi4761+521340+57340+573178(Top 11%)192(Top 2%)192(Top 4%)
20M20.00 mi1.36 mi4540+221315+25315+252807(Top 10%)172(Top 1%)172(Top 3%)
21M21.00 mi1.00 mi4350+190295+20295+202709(Top 10%)184(Top 2%)184(Top 3%)
35K21.75 mi0.75 mi4223+127283+12283+122216(Top 8%)137(Top 1%)137(Top 3%)
23M23.00 mi1.25 mi4032+191269+14269+142036(Top 7%)125(Top 1%)125(Top 2%)
24M24.00 mi1.00 mi3855+177249+20249+201569(Top 6%)98(Top 0.8%)98(Top 2%)
40K24.85 mi0.85 mi3706+149238+11238+111534(Top 5%)107(Top 0.9%)107(Top 2%)
25.2M25.20 mi0.35 mi3637+69236+2236+21871(Top 7%)164(Top 1%)164(Top 3%)
Finish26.22 mi1.02 mi3482+155221+15221+151592(Top 6%)107(Top 0.9%)107(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5143

Females

365

F18-39

365

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

7231

Females

755

F18-39

755

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5143

Females

365

F18-39

365

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3879

Females

214

F18-39

214

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3438

Females

173

F18-39

173

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2922

Females

136

F18-39

136

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3178

Females

192

F18-39

192

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2807

Females

172

F18-39

172

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2709

Females

184

F18-39

184

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2216

Females

137

F18-39

137

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

2036

Females

125

F18-39

125

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1569

Females

98

F18-39

98

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1534

Females

107

F18-39

107

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1871

Females

164

F18-39

164

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1592

Females

107

F18-39

107

Passing Analysis

Category:
Athletes Passed
4682
Passed By
79
Net Change
+4603
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8085
5K → 10K50555+450#8085#7635
10K → 15K7282+726#7635#6909
15K → 20K8230+823#6909#6086
20K → Half1600+160#6086#5926
Half → 25K6451+644#5926#5282
25K → 30K5221+521#5282#4761
30K → 20M2221+221#4761#4540
20M → 21M1955+190#4540#4350
21M → 35K1325+127#4350#4223
35K → 23M1932+191#4223#4032
23M → 24M1792+177#4032#3855
24M → 40K1512+149#3855#3706
40K → 25.2M712+69#3706#3637
25.2M → Finish1561+155#3637#3482
TOTALS468279+4603
📊

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