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BOSTON MARATHON 2025

Kathleen Schellman

Bib: 11358•F

GA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 42%
Gender (Female)
#0 / 12228
Top 26%
Division (F18-39)
#0 / 5469
Top 44%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:04
Rank: #11590
Start → 5K
7:25/mi
23:04 split
10K· 6.21 mi
45:55
Rank: #11166 (+424)
5K → 10K
7:21/mi
22:51 split
15K· 9.32 mi
1:08:48
Rank: #10902 (+264)
10K → 15K
7:22/mi
22:53 split
20K· 12.43 mi
1:32:10
Rank: #10904 (-2)
15K → 20K
7:31/mi
23:22 split
Half· 13.11 mi
1:37:18
Rank: #10956 (-52)
20K → Half
7:31/mi
5:08 split
25K· 15.53 mi
1:56:45
Rank: #11469 (-513)
Half → 25K
8:01/mi
19:27 split
30K· 18.64 mi
2:22:38
Rank: #11825 (-356)
25K → 30K
8:20/mi
25:53 split
20M
2:34:06
Rank: #11959 (-134)
30K → 20M
8:26/mi
11:28 split
21M
2:43:01
Rank: #11986 (-27)
20M → 21M
8:55/mi
8:55 split
35K· 21.75 mi
2:49:01
Rank: #12000 (-14)
21M → 35K
8:01/mi
6:00 split
23M
2:59:16
Rank: #11925 (+75)
35K → 23M
8:11/mi
10:15 split
24M
3:07:17
Rank: #11868 (+57)
23M → 24M
8:01/mi
8:01 split
40K· 24.85 mi
3:14:19
Rank: #11850 (+18)
24M → 40K
8:14/mi
7:02 split
25.2M
3:17:39
Rank: #11915 (-65)
40K → 25.2M
9:40/mi
3:20 split
Finish· 26.22 mi
3:25:31
Rank: #11843 (+72)
25.2M → Finish
7:43/mi
7:52 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:18
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:48:13
Pace8:15 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2223:047:2523:04
7:25
-
10K
6.21 mi11:13:1345:557:2322:51
7:21
-0:04
15K
9.32 mi11:36:061:08:487:2322:53
7:22
+0:01
20K
12.43 mi11:59:281:32:107:2523:22
7:31
+0:09
Half
13.11 mi12:04:361:37:187:255:08
7:31
0:00
25K
15.53 mi12:24:031:56:457:3119:27
8:01
+0:30
30K
18.64 mi12:49:562:22:387:3925:53
8:20
+0:19
20M
20.00 mi13:01:242:34:067:4211:28
8:26
+0:06
21M
21.00 mi13:10:192:43:017:468:55
8:55
+0:29
35K
21.75 mi13:16:192:49:017:466:00
8:01
-0:54
23M
23.00 mi13:26:342:59:167:4810:15
8:11
+0:10
24M
24.00 mi13:34:353:07:177:488:01
8:01
-0:10
40K
24.85 mi13:41:373:14:197:497:02
8:14
+0:13
25.2M
25.20 mi13:44:573:17:397:513:20
9:40
+1:26
Finish
26.22 mi13:52:493:25:317:517:52
7:43
-1:57

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

7:21 /mi

Average Pace

7:51 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:18

47% of race

Time at Steady Pace

58:37

29% of race

Time at Slower Pace

49:36

24% of race

Average Pace: 7:50 /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 mi10:50:2223:047:2523:04
7:25
#11590
10K
6.21 mi11:13:1345:557:2322:51
7:21
#11166
15K
9.32 mi11:36:061:08:487:2322:53
7:22
#10902
20K
12.43 mi11:59:281:32:107:2523:22
7:31
#10904
Half
13.11 mi12:04:361:37:187:255:08
7:31
#10956
25K
15.53 mi12:24:031:56:457:3119:27
8:01
#11469
30K
18.64 mi12:49:562:22:387:3925:53
8:20
#11825
20M
20.00 mi13:01:242:34:067:4211:28
8:26
#11959
21M
21.00 mi13:10:192:43:017:468:55
8:55
#11986
35K
21.75 mi13:16:192:49:017:466:00
8:01
#12000
23M
23.00 mi13:26:342:59:167:4810:15
8:11
#11925
24M
24.00 mi13:34:353:07:177:488:01
8:01
#11868
40K
24.85 mi13:41:373:14:197:497:02
8:14
#11850
25.2M
25.20 mi13:44:573:17:397:513:20
9:40
#11915
Finish
26.22 mi13:52:493:25:317:517:52
7:43
#11843
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi115902573257310565(Top 37%)2155(Top 18%)2155(Top 39%)
10K6.21 mi3.10 mi11166+4242382+1912382+19110799(Top 38%)2207(Top 18%)2207(Top 40%)
15K9.32 mi3.11 mi10902+2642270+1122270+11210565(Top 37%)2155(Top 18%)2155(Top 39%)
20K12.43 mi3.11 mi10904-22290-202290-2010968(Top 39%)2461(Top 20%)2461(Top 45%)
Half13.11 mi0.68 mi10956-522322-322322-3212003(Top 42%)2953(Top 24%)2953(Top 54%)
25K15.53 mi2.42 mi11469-5132634-3122634-31214074(Top 50%)4234(Top 35%)4234(Top 77%)
30K18.64 mi3.11 mi11825-3562912-2782912-27813694(Top 48%)4194(Top 34%)4194(Top 77%)
20M20.00 mi1.36 mi11959-1343011-993011-9913397(Top 47%)4183(Top 34%)4183(Top 76%)
21M21.00 mi1.00 mi11986-273060-493060-4913035(Top 46%)4135(Top 34%)4135(Top 76%)
35K21.75 mi0.75 mi12000-143094-343094-3412408(Top 44%)3843(Top 31%)3843(Top 70%)
23M23.00 mi1.25 mi11925+753096-23096-211298(Top 40%)3377(Top 28%)3377(Top 62%)
24M24.00 mi1.00 mi11868+573104-83104-811384(Top 40%)3507(Top 29%)3507(Top 64%)
40K24.85 mi0.85 mi11850+183131-273131-2711733(Top 41%)3768(Top 31%)3768(Top 69%)
25.2M25.20 mi0.35 mi11915-653179-483179-4815445(Top 54%)5769(Top 47%)5769(Top 105%)
Finish26.22 mi1.02 mi11843+723175+43175+410876(Top 38%)3397(Top 28%)3397(Top 62%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

10565

Females

2155

F18-39

2155

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10799

Females

2207

F18-39

2207

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

10565

Females

2155

F18-39

2155

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10968

Females

2461

F18-39

2461

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

12003

Females

2953

F18-39

2953

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

14074

Females

4234

F18-39

4234

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

13694

Females

4194

F18-39

4194

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

13397

Females

4183

F18-39

4183

20M→21M

20.0 - 21.0 mi

Top 46%
×8story building
+106ft-24ft

Overall

13035

Females

4135

F18-39

4135

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

12408

Females

3843

F18-39

3843

35K→23M

21.8 - 23.0 mi

Top 40%
×5story building
+23ft-63ft

Overall

11298

Females

3377

F18-39

3377

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11384

Females

3507

F18-39

3507

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11733

Females

3768

F18-39

3768

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15445

Females

5769

F18-39

5769

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2story building
+22ft-21ft

Overall

10876

Females

3397

F18-39

3397

Passing Analysis

Category:
Athletes Passed
1932
Passed By
2185
Net Change
-253
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11590
5K → 10K52298+424#11590#11166
10K → 15K32561+264#11166#10902
15K → 20K173175-2#10902#10904
20K → Half2375-52#10904#10956
Half → 25K63576-513#10956#11469
25K → 30K147503-356#11469#11825
30K → 20M74208-134#11825#11959
20M → 21M93120-27#11959#11986
21M → 35K5872-14#11986#12000
35K → 23M13863+75#12000#11925
23M → 24M10245+57#11925#11868
24M → 40K8668+18#11868#11850
40K → 25.2M1782-65#11850#11915
25.2M → Finish11139+72#11915#11843
TOTALS19322185-253
📊

Passing Visuals

Category:
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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