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BOSTON MARATHON 2025

Courtney Klashman

Bib: 10997•F

NC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 27%
Gender (Female)
#0 / 12228
Top 10%
Division (F18-39)
#0 / 5469
Top 18%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:53
Rank: #8177
Start → 5K
21:53 | 7:03/mi
10K· 6.21 mi
43:39
Rank: #8062 (+115)
5K → 10K
21:46 | 7:00/mi
15K· 9.32 mi
1:05:14
Rank: #7751 (+311)
10K → 15K
21:35 | 6:57/mi
20K· 12.43 mi
1:26:54
Rank: #7453 (+298)
15K → 20K
21:40 | 6:58/mi
Half· 13.11 mi
1:31:38
Rank: #7430 (+23)
20K → Half
4:44 | 6:56/mi
25K· 15.53 mi
1:48:29
Rank: #7160 (+270)
Half → 25K
16:51 | 6:57/mi
30K· 18.64 mi
2:10:41
Rank: #6739 (+421)
25K → 30K
22:12 | 7:09/mi
20M
2:22:57
Rank: #7383 (-644)
30K → 20M
12:16 | 9:02/mi
21M
2:30:45
Rank: #7259 (+124)
20M → 21M
7:48 | 7:48/mi
35K· 21.75 mi
2:36:01
Rank: #7147 (+112)
21M → 35K
5:16 | 7:02/mi
23M
2:46:07
Rank: #7263 (-116)
35K → 23M
10:06 | 8:04/mi
24M
2:54:02
Rank: #7367 (-104)
23M → 24M
7:55 | 7:55/mi
40K· 24.85 mi
3:00:33
Rank: #7323 (+44)
24M → 40K
6:31 | 7:37/mi
25.2M
3:03:56
Rank: #7458 (-135)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
3:11:50
Rank: #7561 (-103)
25.2M → Finish
7:54 | 7:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:38
Pace6:59 /mi
2nd Half
Distance13.11 mi
Time1:40:12
Pace7:39 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:2721:537:0321:53
7:03
-
10K
6.21 mi11:10:1343:397:0121:46
7:00
-0:03
15K
9.32 mi11:31:481:05:147:0021:35
6:57
-0:03
20K
12.43 mi11:53:281:26:547:0021:40
6:58
+0:01
Half
13.11 mi11:58:121:31:386:594:44
6:56
-0:02
25K
15.53 mi12:15:031:48:296:5916:51
6:57
+0:01
30K
18.64 mi12:37:152:10:417:0122:12
7:09
+0:12
20M
20.00 mi12:49:312:22:577:0912:16
9:02
+1:53
21M
21.00 mi12:57:192:30:457:117:48
7:48
-1:14
35K
21.75 mi13:02:352:36:017:105:16
7:02
-0:46
23M
23.00 mi13:12:412:46:077:1310:06
8:04
+1:02
24M
24.00 mi13:20:362:54:027:157:55
7:55
-0:09
40K
24.85 mi13:27:073:00:337:166:31
7:37
-0:18
25.2M
25.20 mi13:30:303:03:567:183:23
9:49
+2:12
Finish
26.22 mi13:38:243:11:507:197:54
7:45
-2:04

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

7:19 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:15:57

71% of race

Time at Slower Pace

55:53

29% of race

Average Pace: 7:19 /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 mi10:48:2721:537:0321:53
7:03
#8177
10K
6.21 mi11:10:1343:397:0121:46
7:00
#8062
15K
9.32 mi11:31:481:05:147:0021:35
6:57
#7751
20K
12.43 mi11:53:281:26:547:0021:40
6:58
#7453
Half
13.11 mi11:58:121:31:386:594:44
6:56
#7430
25K
15.53 mi12:15:031:48:296:5916:51
6:57
#7160
30K
18.64 mi12:37:152:10:417:0122:12
7:09
#6739
20M
20.00 mi12:49:312:22:577:0912:16
9:02
#7383
21M
21.00 mi12:57:192:30:457:117:48
7:48
#7259
35K
21.75 mi13:02:352:36:017:105:16
7:02
#7147
23M
23.00 mi13:12:412:46:077:1310:06
8:04
#7263
24M
24.00 mi13:20:362:54:027:157:55
7:55
#7367
40K
24.85 mi13:27:073:00:337:166:31
7:37
#7323
25.2M
25.20 mi13:30:303:03:567:183:23
9:49
#7458
Finish
26.22 mi13:38:243:11:507:197:54
7:45
#7561
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8177104510457298(Top 26%)810(Top 7%)810(Top 15%)
10K6.21 mi3.10 mi8062+1151018+271018+277970(Top 28%)995(Top 8%)995(Top 18%)
15K9.32 mi3.11 mi7751+311912+106912+1067298(Top 26%)810(Top 7%)810(Top 15%)
20K12.43 mi3.11 mi7453+298837+75837+756737(Top 24%)718(Top 6%)718(Top 13%)
Half13.11 mi0.68 mi7430+23832+5832+57209(Top 25%)833(Top 7%)833(Top 15%)
25K15.53 mi2.42 mi7160+270775+57775+576004(Top 21%)592(Top 5%)592(Top 11%)
30K18.64 mi3.11 mi6739+421712+63712+635595(Top 20%)574(Top 5%)574(Top 10%)
20M20.00 mi1.36 mi7383-644917-205917-20516934(Top 60%)6093(Top 50%)6093(Top 111%)
21M21.00 mi1.00 mi7259+124909+8909+86220(Top 22%)998(Top 8%)998(Top 18%)
35K21.75 mi0.75 mi7147+112895+14895+145699(Top 20%)834(Top 7%)834(Top 15%)
23M23.00 mi1.25 mi7263-116980-85980-8510522(Top 37%)2997(Top 25%)2997(Top 55%)
24M24.00 mi1.00 mi7367-1041047-671047-6710676(Top 38%)3117(Top 25%)3117(Top 57%)
40K24.85 mi0.85 mi7323+441059-121059-127580(Top 27%)1785(Top 15%)1785(Top 33%)
25.2M25.20 mi0.35 mi7458-1351128-691128-6916148(Top 57%)6133(Top 50%)6133(Top 112%)
Finish26.22 mi1.02 mi7561-1031193-651193-6511097(Top 39%)3495(Top 29%)3495(Top 64%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

7298

Females

810

F18-39

810

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7970

Females

995

F18-39

995

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

7298

Females

810

F18-39

810

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6737

Females

718

F18-39

718

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

7209

Females

833

F18-39

833

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

6004

Females

592

F18-39

592

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5595

Females

574

F18-39

574

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

16934

Females

6093

F18-39

6093

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

6220

Females

998

F18-39

998

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5699

Females

834

F18-39

834

35K→23M

21.8 - 23.0 mi

Top 37%
×5stories
+23ft-63ft

Overall

10522

Females

2997

F18-39

2997

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10676

Females

3117

F18-39

3117

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7580

Females

1785

F18-39

1785

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16148

Females

6133

F18-39

6133

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2stories
+22ft-21ft

Overall

11097

Females

3495

F18-39

3495

Passing Analysis

Category:
Athletes Passed
2178
Passed By
1562
Net Change
+616
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8177
5K → 10K273158+115#8177#8062
10K → 15K33322+311#8062#7751
15K → 20K31517+298#7751#7453
20K → Half4017+23#7453#7430
Half → 25K2777+270#7430#7160
25K → 30K43817+421#7160#6739
30K → 20M18662-644#6739#7383
20M → 21M14016+124#7383#7259
21M → 35K1153+112#7259#7147
35K → 23M58174-116#7147#7263
23M → 24M42146-104#7263#7367
24M → 40K8440+44#7367#7323
40K → 25.2M5140-135#7323#7458
25.2M → Finish40143-103#7458#7561
TOTALS21781562+616
📊

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