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BOSTON MARATHON 2025

Arthur Chillcott

Bib: 28597•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:53/mi
27:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:59/mi
55:31
↑ 79↓ 1380.4%
15K· 9.32 mi
9:32/mi
1:25:09
↑ 67↓ 78
20K· 12.43 mi
9:58/mi
1:56:08
↑ 106↓ 860.1%
Half· 13.11 mi
9:18/mi
2:02:29
↑ 19↓ 370.5%
25K· 15.53 mi
10:01/mi
2:26:47
↑ 66↓ 880.2%
30K· 18.64 mi
10:48/mi
3:00:20
↑ 181↓ 1480.2%
20M
11:24/mi
3:15:50
↑ 64↓ 500.2%
21M
12:16/mi
3:28:06
↑ 106↓ 241.6%
35K· 21.75 mi
11:00/mi
3:36:20
↑ 17↓ 861.7%
23M
11:07/mi
3:50:15
↑ 23↓ 630.6%
24M
12:05/mi
4:02:20
↓ 821.3%
40K· 24.85 mi
12:06/mi
4:12:41
↓ 200.3%
25.2M
13:58/mi
4:17:30
↑ 13↓ 160.2%
Finish· 26.22 mi
12:44/mi
4:30:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:29
Pace9:21 /mi
2nd Half
Distance13.11 mi
Time2:28:00
Pace11:17 /mi
📊Positive Split: 20.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:5227:378:5327:37
8:53
-
10K
6.21 mi12:12:4655:318:5627:54
8:59
+0:06
15K
9.32 mi12:42:241:25:099:0829:38
9:32
+0:33
20K
12.43 mi13:13:231:56:089:2130:59
9:58
+0:26
Half
13.11 mi13:19:442:02:299:216:21
9:18
-0:40
25K
15.53 mi13:44:022:26:479:2724:18
10:01
+0:43
30K
18.64 mi14:17:353:00:209:4033:33
10:48
+0:47
20M
20.00 mi14:33:053:15:509:4715:30
11:24
+0:36
21M
21.00 mi14:45:213:28:069:5512:16
12:16
+0:52
35K
21.75 mi14:53:353:36:209:578:14
11:00
-1:16
23M
23.00 mi15:07:303:50:1510:0113:55
11:07
+0:07
24M
24.00 mi15:19:354:02:2010:0612:05
12:05
+0:58
40K
24.85 mi15:29:564:12:4110:1010:21
12:06
+0:01
25.2M
25.20 mi15:34:454:17:3010:134:49
13:58
+1:52
Finish
26.22 mi15:47:444:30:2910:1912:59
12:44
-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

8:53 /mi

Average Pace

10:19 /mi

Slowest Pace

13:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:47

54% of race

Time at Steady Pace

1:11:12

26% of race

Time at Slower Pace

52:30

19% of race

Average Pace: 10:19 /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 mi11:44:5227:378:5327:37
8:53
#21942
10K
6.21 mi12:12:4655:318:5627:54
8:59
#22130
15K
9.32 mi12:42:241:25:099:0829:38
9:32
#22864
20K
12.43 mi13:13:231:56:089:2130:59
9:58
#23269
Half
13.11 mi13:19:442:02:299:216:21
9:18
#23263
25K
15.53 mi13:44:022:26:479:2724:18
10:01
#23270
30K
18.64 mi14:17:353:00:209:4033:33
10:48
#23320
20M
20.00 mi14:33:053:15:509:4715:30
11:24
#23410
21M
21.00 mi14:45:213:28:069:5512:16
12:16
#23465
35K
21.75 mi14:53:353:36:209:578:14
11:00
#23489
23M
23.00 mi15:07:303:50:1510:0113:55
11:07
#23496
24M
24.00 mi15:19:354:02:2010:0612:05
12:05
#23664
40K
24.85 mi15:29:564:12:4110:1010:21
12:06
#23731
25.2M
25.20 mi15:34:454:17:3010:134:49
13:58
#23788
Finish
26.22 mi15:47:444:30:2910:1912:59
12:44
#24069
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi21942132881328823844(Top 84%)14213(Top 88%)14213(Top 862%)
10K6.21 mi3.10 mi22130-18813385-9713385-9722298(Top 79%)13476(Top 84%)13476(Top 818%)
15K9.32 mi3.11 mi22864-73413755-37013755-37023844(Top 84%)14213(Top 88%)14213(Top 862%)
20K12.43 mi3.11 mi23269-40513939-18413939-18424169(Top 85%)14294(Top 89%)14294(Top 867%)
Half13.11 mi0.68 mi23263+613934+513934+522977(Top 81%)13785(Top 86%)13785(Top 836%)
25K15.53 mi2.42 mi23270-713929+513929+523313(Top 82%)13882(Top 86%)13882(Top 842%)
30K18.64 mi3.11 mi23320-5013899+3013899+3023608(Top 83%)13890(Top 86%)13890(Top 843%)
20M20.00 mi1.36 mi23410-9013928-2913928-2924383(Top 86%)14161(Top 88%)14161(Top 859%)
21M21.00 mi1.00 mi23465-5513922+613922+624039(Top 85%)13927(Top 86%)13927(Top 845%)
35K21.75 mi0.75 mi23489-24139221392224203(Top 85%)13971(Top 87%)13971(Top 848%)
23M23.00 mi1.25 mi23496-713912+1013912+1023490(Top 83%)13591(Top 84%)13591(Top 825%)
24M24.00 mi1.00 mi23664-16813968-5613968-5625771(Top 91%)14690(Top 91%)14690(Top 891%)
40K24.85 mi0.85 mi23731-6713985-1713985-1725079(Top 88%)14304(Top 89%)14304(Top 868%)
25.2M25.20 mi0.35 mi23788-5714011-2614011-2626245(Top 92%)14859(Top 92%)14859(Top 902%)
Finish26.22 mi1.02 mi24069-28114134-12314134-12327451(Top 97%)15537(Top 96%)15537(Top 943%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

23844

Males

14213

M55-59

14213

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22298

Males

13476

M55-59

13476

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

23844

Males

14213

M55-59

14213

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

24169

Males

14294

M55-59

14294

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

22977

Males

13785

M55-59

13785

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23313

Males

13882

M55-59

13882

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

23608

Males

13890

M55-59

13890

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

24383

Males

14161

M55-59

14161

20M→21M

20.0 - 21.0 mi

Top 85%
×8story building
+106ft-24ft

Overall

24039

Males

13927

M55-59

13927

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

24203

Males

13971

M55-59

13971

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

23490

Males

13591

M55-59

13591

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

25771

Males

14690

M55-59

14690

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

25079

Males

14304

M55-59

14304

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

26245

Males

14859

M55-59

14859

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

27451

Males

15537

M55-59

15537

Passing Analysis

Category:
Athletes Passed
865
Passed By
2992
Net Change
-2127
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21942
5K → 10K184372-188#21942#22130
10K → 15K38772-734#22130#22864
15K → 20K71476-405#22864#23269
20K → Half3428+6#23269#23263
Half → 25K123130-7#23263#23270
25K → 30K149199-50#23270#23320
30K → 20M50140-90#23320#23410
20M → 21M57112-55#23410#23465
21M → 35K3963-24#23465#23489
35K → 23M7279-7#23489#23496
23M → 24M12180-168#23496#23664
24M → 40K2693-67#23664#23731
40K → 25.2M461-57#23731#23788
25.2M → Finish6287-281#23788#24069
TOTALS8652992-2127
📊

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