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BOSTON MARATHON 2025

Jessica Clark

Bib: 9428•F

UT

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
22:30
Rank: #9822
Start → 5K
22:30 | 7:15/mi
10K· 6.21 mi
45:23
Rank: #10355 (-533)
5K → 10K
22:53 | 7:22/mi
15K· 9.32 mi
1:08:33
Rank: #10658 (-303)
10K → 15K
23:10 | 7:27/mi
20K· 12.43 mi
1:32:41
Rank: #11289 (-631)
15K → 20K
24:08 | 7:46/mi
Half· 13.11 mi
1:37:45
Rank: #11275 (+14)
20K → Half
5:04 | 7:26/mi
25K· 15.53 mi
1:56:34
Rank: #11359 (-84)
Half → 25K
18:49 | 7:46/mi
30K· 18.64 mi
2:21:37
Rank: #11403 (-44)
25K → 30K
25:03 | 8:04/mi
20M
2:32:43
Rank: #11366 (+37)
30K → 20M
11:06 | 8:10/mi
21M
2:41:26
Rank: #11346 (+20)
20M → 21M
8:43 | 8:43/mi
35K· 21.75 mi
2:47:13
Rank: #11309 (+37)
21M → 35K
5:47 | 7:44/mi
23M
2:56:55
Rank: #11062 (+247)
35K → 23M
9:42 | 7:44/mi
24M
3:04:33
Rank: #10928 (+134)
23M → 24M
7:38 | 7:38/mi
40K· 24.85 mi
3:10:56
Rank: #10733 (+195)
24M → 40K
6:23 | 7:28/mi
25.2M
3:13:42
Rank: #10624 (+109)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
3:20:46
Rank: #10363 (+261)
25.2M → Finish
7:04 | 6:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:45
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:43:01
Pace7:52 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0622:307:1522:30
7:15
-
10K
6.21 mi11:10:5945:237:1822:53
7:22
+0:07
15K
9.32 mi11:34:091:08:337:2123:10
7:27
+0:05
20K
12.43 mi11:58:171:32:417:2724:08
7:46
+0:19
Half
13.11 mi12:03:211:37:457:275:04
7:26
-0:20
25K
15.53 mi12:22:101:56:347:3018:49
7:46
+0:20
30K
18.64 mi12:47:132:21:377:3625:03
8:04
+0:18
20M
20.00 mi12:58:192:32:437:3811:06
8:10
+0:06
21M
21.00 mi13:07:022:41:267:418:43
8:43
+0:33
35K
21.75 mi13:12:492:47:137:415:47
7:44
-0:59
23M
23.00 mi13:22:312:56:557:429:42
7:44
0:00
24M
24.00 mi13:30:093:04:337:417:38
7:38
-0:06
40K
24.85 mi13:36:323:10:567:416:23
7:28
-0:10
25.2M
25.20 mi13:39:183:13:427:412:46
8:01
+0:33
Finish
26.22 mi13:46:223:20:467:407:04
6:56
-1:05

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

6:56 /mi

Average Pace

7:40 /mi

Slowest Pace

8:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:04

43% of race

Time at Steady Pace

1:06:04

33% of race

Time at Slower Pace

47:38

24% 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 mi10:48:0622:307:1522:30
7:15
#9822
10K
6.21 mi11:10:5945:237:1822:53
7:22
#10355
15K
9.32 mi11:34:091:08:337:2123:10
7:27
#10658
20K
12.43 mi11:58:171:32:417:2724:08
7:46
#11289
Half
13.11 mi12:03:211:37:457:275:04
7:26
#11275
25K
15.53 mi12:22:101:56:347:3018:49
7:46
#11359
30K
18.64 mi12:47:132:21:377:3625:03
8:04
#11403
20M
20.00 mi12:58:192:32:437:3811:06
8:10
#11366
21M
21.00 mi13:07:022:41:267:418:43
8:43
#11346
35K
21.75 mi13:12:492:47:137:415:47
7:44
#11309
23M
23.00 mi13:22:312:56:557:429:42
7:44
#11062
24M
24.00 mi13:30:093:04:337:417:38
7:38
#10928
40K
24.85 mi13:36:323:10:567:416:23
7:28
#10733
25.2M
25.20 mi13:39:183:13:427:412:46
8:01
#10624
Finish
26.22 mi13:46:223:20:467:407:04
6:56
#10363
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi98221735173511365(Top 40%)2567(Top 21%)2567(Top 47%)
10K6.21 mi3.10 mi10355-5331985-2501985-25010852(Top 38%)2232(Top 18%)2232(Top 41%)
15K9.32 mi3.11 mi10658-3032162-1772162-17711365(Top 40%)2567(Top 21%)2567(Top 47%)
20K12.43 mi3.11 mi11289-6312499-3372499-33712990(Top 46%)3549(Top 29%)3549(Top 65%)
Half13.11 mi0.68 mi11275+142489+102489+1011011(Top 39%)2453(Top 20%)2453(Top 45%)
25K15.53 mi2.42 mi11359-842571-822571-8212006(Top 42%)3128(Top 26%)3128(Top 57%)
30K18.64 mi3.11 mi11403-442679-1082679-10811818(Top 42%)3208(Top 26%)3208(Top 59%)
20M20.00 mi1.36 mi11366+372706-272706-2711551(Top 41%)3220(Top 26%)3220(Top 59%)
21M21.00 mi1.00 mi11346+202732-262732-2611728(Top 41%)3478(Top 28%)3478(Top 64%)
35K21.75 mi0.75 mi11309+372740-82740-810389(Top 37%)2814(Top 23%)2814(Top 51%)
23M23.00 mi1.25 mi11062+2472648+922648+928150(Top 29%)1896(Top 16%)1896(Top 35%)
24M24.00 mi1.00 mi10928+1342618+302618+308594(Top 30%)2154(Top 18%)2154(Top 39%)
40K24.85 mi0.85 mi10733+1952543+752543+756546(Top 23%)1374(Top 11%)1374(Top 25%)
25.2M25.20 mi0.35 mi10624+1092498+452498+455934(Top 21%)1255(Top 10%)1255(Top 23%)
Finish26.22 mi1.02 mi10363+2612401+972401+975265(Top 19%)969(Top 8%)969(Top 18%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

11365

Females

2567

F18-39

2567

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10852

Females

2232

F18-39

2232

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

11365

Females

2567

F18-39

2567

15K→20K

9.3 - 12.4 mi

Top 46%
×5stories
+106ft-86ft

Overall

12990

Females

3549

F18-39

3549

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

11011

Females

2453

F18-39

2453

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

12006

Females

3128

F18-39

3128

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11818

Females

3208

F18-39

3208

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

11551

Females

3220

F18-39

3220

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

11728

Females

3478

F18-39

3478

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

10389

Females

2814

F18-39

2814

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

8150

Females

1896

F18-39

1896

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8594

Females

2154

F18-39

2154

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6546

Females

1374

F18-39

1374

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5934

Females

1255

F18-39

1255

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5265

Females

969

F18-39

969

Passing Analysis

Category:
Athletes Passed
1904
Passed By
2443
Net Change
-541
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9822
5K → 10K70601-533#9822#10355
10K → 15K91394-303#10355#10658
15K → 20K60691-631#10658#11289
20K → Half3925+14#11289#11275
Half → 25K136220-84#11275#11359
25K → 30K214258-44#11359#11403
30K → 20M13396+37#11403#11366
20M → 21M9979+20#11366#11346
21M → 35K7437+37#11346#11309
35K → 23M26013+247#11309#11062
23M → 24M15016+134#11062#10928
24M → 40K1983+195#10928#10733
40K → 25.2M1156+109#10733#10624
25.2M → Finish2654+261#10624#10363
TOTALS19042443-541
📊

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