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BOSTON MARATHON 2025

Katelyn Clark

Bib: 7681•F

UT

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 29%
Gender (Female)
#0 / 12228
Top 11%
Division (F18-39)
#0 / 5469
Top 21%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:05
Rank: #8726
Start → 5K
22:05 | 7:06/mi
10K· 6.21 mi
44:33
Rank: #9196 (-470)
5K → 10K
22:28 | 7:14/mi
15K· 9.32 mi
1:06:56
Rank: #9175 (+21)
10K → 15K
22:23 | 7:12/mi
20K· 12.43 mi
1:29:05
Rank: #8713 (+462)
15K → 20K
22:09 | 7:08/mi
Half· 13.11 mi
1:33:54
Rank: #8658 (+55)
20K → Half
4:49 | 7:04/mi
25K· 15.53 mi
1:51:44
Rank: #8618 (+40)
Half → 25K
17:50 | 7:21/mi
30K· 18.64 mi
2:15:27
Rank: #8565 (+53)
25K → 30K
23:43 | 7:38/mi
20M
2:25:52
Rank: #8481 (+84)
30K → 20M
10:25 | 7:40/mi
21M
2:33:58
Rank: #8393 (+88)
20M → 21M
8:06 | 8:06/mi
35K· 21.75 mi
2:39:36
Rank: #8382 (+11)
21M → 35K
5:38 | 7:32/mi
23M
2:49:18
Rank: #8313 (+69)
35K → 23M
9:42 | 7:45/mi
24M
2:56:43
Rank: #8207 (+106)
23M → 24M
7:25 | 7:25/mi
40K· 24.85 mi
3:03:19
Rank: #8177 (+30)
24M → 40K
6:36 | 7:43/mi
25.2M
3:06:10
Rank: #8154 (+23)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:13:36
Rank: #8097 (+57)
25.2M → Finish
7:26 | 7:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:54
Pace7:10 /mi
2nd Half
Distance13.11 mi
Time1:39:42
Pace7:36 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:2922:057:0622:05
7:06
-
10K
6.21 mi10:52:5744:337:1022:28
7:14
+0:08
15K
9.32 mi11:15:201:06:567:1122:23
7:12
-0:02
20K
12.43 mi11:37:291:29:057:1022:09
7:08
-0:04
Half
13.11 mi11:42:181:33:547:104:49
7:04
-0:04
25K
15.53 mi12:00:081:51:447:1217:50
7:21
+0:17
30K
18.64 mi12:23:512:15:277:1623:43
7:38
+0:17
20M
20.00 mi12:34:162:25:527:1810:25
7:40
+0:02
21M
21.00 mi12:42:222:33:587:208:06
8:06
+0:26
35K
21.75 mi12:48:002:39:367:205:38
7:32
-0:34
23M
23.00 mi12:57:422:49:187:229:42
7:45
+0:13
24M
24.00 mi13:05:072:56:437:227:25
7:25
-0:20
40K
24.85 mi13:11:433:03:197:236:36
7:43
+0:18
25.2M
25.20 mi13:14:343:06:107:232:51
8:16
+0:33
Finish
26.22 mi13:22:003:13:367:237:26
7:18
-0:58

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

7:04 /mi

Average Pace

7:23 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:02:39

94% of race

Time at Steady Pace

10:57

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:23 /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 mi10:30:2922:057:0622:05
7:06
#8726
10K
6.21 mi10:52:5744:337:1022:28
7:14
#9196
15K
9.32 mi11:15:201:06:567:1122:23
7:12
#9175
20K
12.43 mi11:37:291:29:057:1022:09
7:08
#8713
Half
13.11 mi11:42:181:33:547:104:49
7:04
#8658
25K
15.53 mi12:00:081:51:447:1217:50
7:21
#8618
30K
18.64 mi12:23:512:15:277:1623:43
7:38
#8565
20M
20.00 mi12:34:162:25:527:1810:25
7:40
#8481
21M
21.00 mi12:42:222:33:587:208:06
8:06
#8393
35K
21.75 mi12:48:002:39:367:205:38
7:32
#8382
23M
23.00 mi12:57:422:49:187:229:42
7:45
#8313
24M
24.00 mi13:05:072:56:437:227:25
7:25
#8207
40K
24.85 mi13:11:433:03:197:236:36
7:43
#8177
25.2M
25.20 mi13:14:343:06:107:232:51
8:16
#8154
Finish
26.22 mi13:22:003:13:367:237:26
7:18
#8097
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8726125312539185(Top 32%)1505(Top 12%)1505(Top 28%)
10K6.21 mi3.10 mi9196-4701455-2021455-2029762(Top 34%)1716(Top 14%)1716(Top 31%)
15K9.32 mi3.11 mi9175+211465-101465-109185(Top 32%)1505(Top 12%)1505(Top 28%)
20K12.43 mi3.11 mi8713+4621301+1641301+1647701(Top 27%)1005(Top 8%)1005(Top 18%)
Half13.11 mi0.68 mi8658+551288+131288+138075(Top 28%)1119(Top 9%)1119(Top 20%)
25K15.53 mi2.42 mi8618+401285+31285+38797(Top 31%)1548(Top 13%)1548(Top 28%)
30K18.64 mi3.11 mi8565+531327-421327-428701(Top 31%)1690(Top 14%)1690(Top 31%)
20M20.00 mi1.36 mi8481+841321+61321+68146(Top 29%)1592(Top 13%)1592(Top 29%)
21M21.00 mi1.00 mi8393+881327-61327-67976(Top 28%)1715(Top 14%)1715(Top 31%)
35K21.75 mi0.75 mi8382+111344-171344-178858(Top 31%)2052(Top 17%)2052(Top 38%)
23M23.00 mi1.25 mi8313+691357-131357-138222(Top 29%)1903(Top 16%)1903(Top 35%)
24M24.00 mi1.00 mi8207+1061354+31354+37165(Top 25%)1520(Top 12%)1520(Top 28%)
40K24.85 mi0.85 mi8177+301370-161370-168234(Top 29%)2083(Top 17%)2083(Top 38%)
25.2M25.20 mi0.35 mi8154+231374-41374-47499(Top 26%)1839(Top 15%)1839(Top 34%)
Finish26.22 mi1.02 mi8097+571391-171391-177763(Top 27%)1961(Top 16%)1961(Top 36%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

9185

Females

1505

F18-39

1505

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

9762

Females

1716

F18-39

1716

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

9185

Females

1505

F18-39

1505

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7701

Females

1005

F18-39

1005

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

8075

Females

1119

F18-39

1119

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8797

Females

1548

F18-39

1548

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8701

Females

1690

F18-39

1690

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

8146

Females

1592

F18-39

1592

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7976

Females

1715

F18-39

1715

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8858

Females

2052

F18-39

2052

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

8222

Females

1903

F18-39

1903

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

7165

Females

1520

F18-39

1520

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8234

Females

2083

F18-39

2083

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7499

Females

1839

F18-39

1839

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7763

Females

1961

F18-39

1961

Passing Analysis

Category:
Athletes Passed
2012
Passed By
1383
Net Change
+629
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8726
5K → 10K75545-470#8726#9196
10K → 15K174153+21#9196#9175
15K → 20K47311+462#9175#8713
20K → Half627+55#8713#8658
Half → 25K158118+40#8658#8618
25K → 30K234181+53#8618#8565
30K → 20M13551+84#8565#8481
20M → 21M13648+88#8481#8393
21M → 35K6655+11#8393#8382
35K → 23M14475+69#8382#8313
23M → 24M13125+106#8313#8207
24M → 40K7747+30#8207#8177
40K → 25.2M3714+23#8177#8154
25.2M → Finish11053+57#8154#8097
TOTALS20121383+629
📊

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