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BOSTON MARATHON 2025

Charlie Duncan

Bib: 30267•M

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:24
Rank: #24123
Start → 5K
29:24 | 9:28/mi
10K· 6.21 mi
58:02
Rank: #23680 (+443)
5K → 10K
28:38 | 9:13/mi
15K· 9.32 mi
1:26:29
Rank: #23362 (+318)
10K → 15K
28:27 | 9:09/mi
20K· 12.43 mi
1:55:15
Rank: #23058 (+304)
15K → 20K
28:46 | 9:16/mi
Half· 13.11 mi
2:01:38
Rank: #23064 (-6)
20K → Half
6:23 | 9:21/mi
25K· 15.53 mi
2:24:42
Rank: #22838 (+226)
Half → 25K
23:04 | 9:31/mi
30K· 18.64 mi
2:54:54
Rank: #22432 (+406)
25K → 30K
30:12 | 9:43/mi
20M
3:08:33
Rank: #22336 (+96)
30K → 20M
13:39 | 10:03/mi
21M
3:18:56
Rank: #22156 (+180)
20M → 21M
10:23 | 10:23/mi
35K· 21.75 mi
3:26:43
Rank: #22195 (-39)
21M → 35K
7:47 | 10:24/mi
23M
3:39:55
Rank: #22176 (+19)
35K → 23M
13:12 | 10:33/mi
24M
3:50:47
Rank: #22232 (-56)
23M → 24M
10:52 | 10:52/mi
40K· 24.85 mi
3:59:50
Rank: #22240 (-8)
24M → 40K
9:03 | 10:35/mi
25.2M
4:03:24
Rank: #22183 (+57)
40K → 25.2M
3:34 | 10:21/mi
Finish· 26.22 mi
4:12:46
Rank: #22087 (+96)
25.2M → Finish
9:22 | 9:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:38
Pace9:17 /mi
2nd Half
Distance13.11 mi
Time2:11:08
Pace10:00 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:5029:249:2829:24
9:28
-
10K
6.21 mi12:23:2858:029:2028:38
9:13
-0:15
15K
9.32 mi12:51:551:26:299:1728:27
9:09
-0:04
20K
12.43 mi13:20:411:55:159:1628:46
9:16
+0:07
Half
13.11 mi13:27:042:01:389:176:23
9:21
+0:05
25K
15.53 mi13:50:082:24:429:1923:04
9:31
+0:10
30K
18.64 mi14:20:202:54:549:2330:12
9:43
+0:12
20M
20.00 mi14:33:593:08:339:2613:39
10:03
+0:20
21M
21.00 mi14:44:223:18:569:2810:23
10:23
+0:20
35K
21.75 mi14:52:093:26:439:307:47
10:24
+0:01
23M
23.00 mi15:05:213:39:559:3413:12
10:33
+0:09
24M
24.00 mi15:16:133:50:479:3710:52
10:52
+0:19
40K
24.85 mi15:25:163:59:509:399:03
10:35
-0:17
25.2M
25.20 mi15:28:504:03:249:403:34
10:21
-0:14
Finish
26.22 mi15:38:124:12:469:399:22
9:11
-1:10

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

9:09 /mi

Average Pace

9:39 /mi

Slowest Pace

10:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:55

78% of race

Time at Steady Pace

43:59

17% of race

Time at Slower Pace

10:52

4% of race

Average Pace: 9:38 /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 mi11:54:5029:249:2829:24
9:28
#24123
10K
6.21 mi12:23:2858:029:2028:38
9:13
#23680
15K
9.32 mi12:51:551:26:299:1728:27
9:09
#23362
20K
12.43 mi13:20:411:55:159:1628:46
9:16
#23058
Half
13.11 mi13:27:042:01:389:176:23
9:21
#23064
25K
15.53 mi13:50:082:24:429:1923:04
9:31
#22838
30K
18.64 mi14:20:202:54:549:2330:12
9:43
#22432
20M
20.00 mi14:33:593:08:339:2613:39
10:03
#22336
21M
21.00 mi14:44:223:18:569:2810:23
10:23
#22156
35K
21.75 mi14:52:093:26:439:307:47
10:24
#22195
23M
23.00 mi15:05:213:39:559:3413:12
10:33
#22176
24M
24.00 mi15:16:133:50:479:3710:52
10:52
#22232
40K
24.85 mi15:25:163:59:509:399:03
10:35
#22240
25.2M
25.20 mi15:28:504:03:249:403:34
10:21
#22183
Finish
26.22 mi15:38:124:12:469:399:22
9:11
#22087
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24123143001430022685(Top 80%)13684(Top 85%)13684(Top 243%)
10K6.21 mi3.10 mi23680+44314094+20614094+20623254(Top 82%)13924(Top 86%)13924(Top 247%)
15K9.32 mi3.11 mi23362+31813970+12413970+12422685(Top 80%)13684(Top 85%)13684(Top 243%)
20K12.43 mi3.11 mi23058+30413837+13313837+13322119(Top 78%)13412(Top 83%)13412(Top 238%)
Half13.11 mi0.68 mi23064-613839-213839-223116(Top 81%)13835(Top 86%)13835(Top 245%)
25K15.53 mi2.42 mi22838+22613722+11713722+11721905(Top 77%)13244(Top 82%)13244(Top 235%)
30K18.64 mi3.11 mi22432+40613498+22413498+22420746(Top 73%)12612(Top 78%)12612(Top 224%)
20M20.00 mi1.36 mi22336+9613440+5813440+5821100(Top 74%)12636(Top 78%)12636(Top 224%)
21M21.00 mi1.00 mi22156+18013339+10113339+10119644(Top 69%)11887(Top 74%)11887(Top 211%)
35K21.75 mi0.75 mi22195-3913344-513344-522945(Top 81%)13356(Top 83%)13356(Top 237%)
23M23.00 mi1.25 mi22176+1913296+4813296+4822124(Top 78%)12939(Top 80%)12939(Top 229%)
24M24.00 mi1.00 mi22232-5613295+113295+123698(Top 83%)13661(Top 85%)13661(Top 242%)
40K24.85 mi0.85 mi22240-813298-313298-322144(Top 78%)12812(Top 80%)12812(Top 227%)
25.2M25.20 mi0.35 mi22183+5713260+3813260+3818453(Top 65%)11061(Top 69%)11061(Top 196%)
Finish26.22 mi1.02 mi22087+9613200+6013200+6019908(Top 70%)11764(Top 73%)11764(Top 209%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

22685

Males

13684

M18-39

13684

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

23254

Males

13924

M18-39

13924

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

22685

Males

13684

M18-39

13684

15K→20K

9.3 - 12.4 mi

Top 78%
×5stories
+106ft-86ft

Overall

22119

Males

13412

M18-39

13412

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

23116

Males

13835

M18-39

13835

Half→25K

13.1 - 15.5 mi

Top 77%
×4stories
+66ft-88ft

Overall

21905

Males

13244

M18-39

13244

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

20746

Males

12612

M18-39

12612

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

21100

Males

12636

M18-39

12636

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

19644

Males

11887

M18-39

11887

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

22945

Males

13356

M18-39

13356

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

22124

Males

12939

M18-39

12939

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

23698

Males

13661

M18-39

13661

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22144

Males

12812

M18-39

12812

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18453

Males

11061

M18-39

11061

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

19908

Males

11764

M18-39

11764

Passing Analysis

Category:
Athletes Passed
2595
Passed By
559
Net Change
+2036
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24123
5K → 10K52683+443#24123#23680
10K → 15K36244+318#23680#23362
15K → 20K32925+304#23362#23058
20K → Half2228-6#23058#23064
Half → 25K25933+226#23064#22838
25K → 30K42923+406#22838#22432
30K → 20M12226+96#22432#22336
20M → 21M19111+180#22336#22156
21M → 35K2463-39#22156#22195
35K → 23M8869+19#22195#22176
23M → 24M3793-56#22176#22232
24M → 40K4048-8#22232#22240
40K → 25.2M625+57#22240#22183
25.2M → Finish1048+96#22183#22087
TOTALS2595559+2036
📊

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