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BOSTON MARATHON 2025

Harriet Somers

Bib: 16096•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 36%
Gender (Female)
#0 / 12228
Top 20%
Division (F18-39)
#0 / 5469
Top 34%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:20
Rank: #12320
Start → 5K
23:20 | 7:31/mi
10K· 6.21 mi
46:47
Rank: #12370 (-50)
5K → 10K
23:27 | 7:33/mi
15K· 9.32 mi
1:10:13
Rank: #12263 (+107)
10K → 15K
23:26 | 7:33/mi
20K· 12.43 mi
1:33:44
Rank: #12011 (+252)
15K → 20K
23:31 | 7:34/mi
Half· 13.11 mi
1:38:51
Rank: #11979 (+32)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:57:19
Rank: #11773 (+206)
Half → 25K
18:28 | 7:37/mi
30K· 18.64 mi
2:21:42
Rank: #11438 (+335)
25K → 30K
24:23 | 7:51/mi
20M
2:32:36
Rank: #11327 (+111)
30K → 20M
10:54 | 8:01/mi
21M
2:40:56
Rank: #11176 (+151)
20M → 21M
8:20 | 8:20/mi
35K· 21.75 mi
2:46:43
Rank: #11122 (+54)
21M → 35K
5:47 | 7:44/mi
23M
2:56:31
Rank: #10939 (+183)
35K → 23M
9:48 | 7:50/mi
24M
3:04:02
Rank: #10754 (+185)
23M → 24M
7:31 | 7:31/mi
40K· 24.85 mi
3:10:36
Rank: #10620 (+134)
24M → 40K
6:34 | 7:41/mi
25.2M
3:13:29
Rank: #10546 (+74)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:20:45
Rank: #10359 (+187)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:51
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:41:54
Pace7:46 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:0623:207:3123:20
7:31
-
10K
6.21 mi11:21:3346:477:3223:27
7:33
+0:02
15K
9.32 mi11:44:591:10:137:3223:26
7:33
0:00
20K
12.43 mi12:08:301:33:447:3323:31
7:34
+0:01
Half
13.11 mi12:13:371:38:517:325:07
7:30
-0:04
25K
15.53 mi12:32:051:57:197:3318:28
7:37
+0:07
30K
18.64 mi12:56:282:21:427:3624:23
7:51
+0:14
20M
20.00 mi13:07:222:32:367:3810:54
8:01
+0:10
21M
21.00 mi13:15:422:40:567:408:20
8:20
+0:19
35K
21.75 mi13:21:292:46:437:405:47
7:44
-0:36
23M
23.00 mi13:31:172:56:317:409:48
7:50
+0:06
24M
24.00 mi13:38:483:04:027:407:31
7:31
-0:19
40K
24.85 mi13:45:223:10:367:406:34
7:41
+0:10
25.2M
25.20 mi13:48:153:13:297:412:53
8:22
+0:41
Finish
26.22 mi13:55:313:20:457:407:16
7:08
-1:14

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

7:40 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:15

77% of race

Time at Steady Pace

46:30

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:39 /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 mi10:58:0623:207:3123:20
7:31
#12320
10K
6.21 mi11:21:3346:477:3223:27
7:33
#12370
15K
9.32 mi11:44:591:10:137:3223:26
7:33
#12263
20K
12.43 mi12:08:301:33:447:3323:31
7:34
#12011
Half
13.11 mi12:13:371:38:517:325:07
7:30
#11979
25K
15.53 mi12:32:051:57:197:3318:28
7:37
#11773
30K
18.64 mi12:56:282:21:427:3624:23
7:51
#11438
20M
20.00 mi13:07:222:32:367:3810:54
8:01
#11327
21M
21.00 mi13:15:422:40:567:408:20
8:20
#11176
35K
21.75 mi13:21:292:46:437:405:47
7:44
#11122
23M
23.00 mi13:31:172:56:317:409:48
7:50
#10939
24M
24.00 mi13:38:483:04:027:407:31
7:31
#10754
40K
24.85 mi13:45:223:10:367:406:34
7:41
#10620
25.2M
25.20 mi13:48:153:13:297:412:53
8:22
#10546
Finish
26.22 mi13:55:313:20:457:407:16
7:08
#10359
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi123202981298112112(Top 43%)2970(Top 24%)2970(Top 54%)
10K6.21 mi3.10 mi12370-503001-203001-2012516(Top 44%)3104(Top 25%)3104(Top 57%)
15K9.32 mi3.11 mi12263+1072982+192982+1912112(Top 43%)2970(Top 24%)2970(Top 54%)
20K12.43 mi3.11 mi12011+2522876+1062876+10611313(Top 40%)2644(Top 22%)2644(Top 48%)
Half13.11 mi0.68 mi11979+322866+102866+1011597(Top 41%)2756(Top 23%)2756(Top 50%)
25K15.53 mi2.42 mi11773+2062799+672799+6710886(Top 38%)2533(Top 21%)2533(Top 46%)
30K18.64 mi3.11 mi11438+3352699+1002699+10010261(Top 36%)2419(Top 20%)2419(Top 44%)
20M20.00 mi1.36 mi11327+1112682+172682+1710545(Top 37%)2719(Top 22%)2719(Top 50%)
21M21.00 mi1.00 mi11176+1512649+332649+339382(Top 33%)2341(Top 19%)2341(Top 43%)
35K21.75 mi0.75 mi11122+542633+162633+1610219(Top 36%)2737(Top 22%)2737(Top 50%)
23M23.00 mi1.25 mi10939+1832586+472586+478731(Top 31%)2150(Top 18%)2150(Top 39%)
24M24.00 mi1.00 mi10754+1852525+612525+617751(Top 27%)1784(Top 15%)1784(Top 33%)
40K24.85 mi0.85 mi10620+1342480+452480+457892(Top 28%)1957(Top 16%)1957(Top 36%)
25.2M25.20 mi0.35 mi10546+742455+252455+257845(Top 28%)2033(Top 17%)2033(Top 37%)
Finish26.22 mi1.02 mi10359+1872400+552400+556524(Top 23%)1467(Top 12%)1467(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21stories
+97ft-345ft

Overall

12112

Females

2970

F18-39

2970

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

12516

Females

3104

F18-39

3104

10K→15K

6.2 - 9.3 mi

Top 43%
×3stories
+67ft-78ft

Overall

12112

Females

2970

F18-39

2970

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

11313

Females

2644

F18-39

2644

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

11597

Females

2756

F18-39

2756

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

10886

Females

2533

F18-39

2533

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

10261

Females

2419

F18-39

2419

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

10545

Females

2719

F18-39

2719

20M→21M

20.0 - 21.0 mi

Top 33%
×8stories
+106ft-24ft

Overall

9382

Females

2341

F18-39

2341

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

10219

Females

2737

F18-39

2737

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8731

Females

2150

F18-39

2150

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7751

Females

1784

F18-39

1784

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7892

Females

1957

F18-39

1957

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7845

Females

2033

F18-39

2033

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6524

Females

1467

F18-39

1467

Passing Analysis

Category:
Athletes Passed
2784
Passed By
823
Net Change
+1961
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12320
5K → 10K241291-50#12320#12370
10K → 15K237130+107#12370#12263
15K → 20K31765+252#12263#12011
20K → Half5220+32#12011#11979
Half → 25K26963+206#11979#11773
25K → 30K40166+335#11773#11438
30K → 20M16857+111#11438#11327
20M → 21M18231+151#11327#11176
21M → 35K8228+54#11176#11122
35K → 23M21027+183#11122#10939
23M → 24M19611+185#10939#10754
24M → 40K14410+134#10754#10620
40K → 25.2M8511+74#10620#10546
25.2M → Finish20013+187#10546#10359
TOTALS2784823+1961
📊

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