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BOSTON MARATHON 2025

Becket Duncan

Bib: 4938•M

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 26%
Gender (Male)
#0 / 16105
Top 39%
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
20:26
Rank: #4395
Start → 5K
20:26 | 6:35/mi
10K· 6.21 mi
40:51
Rank: #4305 (+90)
5K → 10K
20:25 | 6:34/mi
15K· 9.32 mi
1:01:38
Rank: #4493 (-188)
10K → 15K
20:47 | 6:41/mi
20K· 12.43 mi
1:22:50
Rank: #4694 (-201)
15K → 20K
21:12 | 6:49/mi
Half· 13.11 mi
1:27:25
Rank: #4718 (-24)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:44:21
Rank: #4953 (-235)
Half → 25K
16:56 | 6:59/mi
30K· 18.64 mi
2:08:02
Rank: #5727 (-774)
25K → 30K
23:41 | 7:37/mi
20M
2:19:04
Rank: #6082 (-355)
30K → 20M
11:02 | 8:07/mi
21M
2:27:34
Rank: #6249 (-167)
20M → 21M
8:30 | 8:30/mi
35K· 21.75 mi
2:34:27
Rank: #6641 (-392)
21M → 35K
6:53 | 9:12/mi
23M
2:44:33
Rank: #6780 (-139)
35K → 23M
10:06 | 8:04/mi
24M
2:52:47
Rank: #7006 (-226)
23M → 24M
8:14 | 8:14/mi
40K· 24.85 mi
3:00:55
Rank: #7421 (-415)
24M → 40K
8:08 | 9:31/mi
25.2M
3:03:49
Rank: #7415 (+6)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:11:19
Rank: #7411 (+4)
25.2M → Finish
7:30 | 7:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:25
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:43:54
Pace7:56 /mi
📊Positive Split: 18.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:1020:266:3520:26
6:35
-
10K
6.21 mi10:45:3540:516:3420:25
6:34
-0:01
15K
9.32 mi11:06:221:01:386:3720:47
6:41
+0:07
20K
12.43 mi11:27:341:22:506:4021:12
6:49
+0:08
Half
13.11 mi11:32:091:27:256:404:35
6:43
-0:06
25K
15.53 mi11:49:051:44:216:4316:56
6:59
+0:16
30K
18.64 mi12:12:462:08:026:5223:41
7:37
+0:38
20M
20.00 mi12:23:482:19:046:5711:02
8:07
+0:30
21M
21.00 mi12:32:182:27:347:028:30
8:30
+0:23
35K
21.75 mi12:39:112:34:277:066:53
9:12
+0:42
23M
23.00 mi12:49:172:44:337:0910:06
8:04
-1:08
24M
24.00 mi12:57:312:52:477:128:14
8:14
+0:10
40K
24.85 mi13:05:393:00:557:178:08
9:31
+1:17
25.2M
25.20 mi13:08:333:03:497:182:54
8:25
-1:06
Finish
26.22 mi13:16:033:11:197:187:30
7:22
-1:03

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

6:34 /mi

Average Pace

7:18 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:21

55% of race

Time at Steady Pace

41:17

22% of race

Time at Slower Pace

45:41

24% of race

Average Pace: 7:18 /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 mi10:25:1020:266:3520:26
6:35
#4395
10K
6.21 mi10:45:3540:516:3420:25
6:34
#4305
15K
9.32 mi11:06:221:01:386:3720:47
6:41
#4493
20K
12.43 mi11:27:341:22:506:4021:12
6:49
#4694
Half
13.11 mi11:32:091:27:256:404:35
6:43
#4718
25K
15.53 mi11:49:051:44:216:4316:56
6:59
#4953
30K
18.64 mi12:12:462:08:026:5223:41
7:37
#5727
20M
20.00 mi12:23:482:19:046:5711:02
8:07
#6082
21M
21.00 mi12:32:182:27:347:028:30
8:30
#6249
35K
21.75 mi12:39:112:34:277:066:53
9:12
#6641
23M
23.00 mi12:49:172:44:337:0910:06
8:04
#6780
24M
24.00 mi12:57:312:52:477:128:14
8:14
#7006
40K
24.85 mi13:05:393:00:557:178:08
9:31
#7421
25.2M
25.20 mi13:08:333:03:497:182:54
8:25
#7415
Finish
26.22 mi13:16:033:11:197:187:30
7:22
#7411
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4395413241324986(Top 18%)4638(Top 29%)4638(Top 82%)
10K6.21 mi3.10 mi4305+904046+864046+864236(Top 15%)3981(Top 25%)3981(Top 71%)
15K9.32 mi3.11 mi4493-1884223-1774223-1774986(Top 18%)4638(Top 29%)4638(Top 82%)
20K12.43 mi3.11 mi4694-2014382-1594382-1595533(Top 19%)5050(Top 31%)5050(Top 90%)
Half13.11 mi0.68 mi4718-244405-234405-235442(Top 19%)4997(Top 31%)4997(Top 89%)
25K15.53 mi2.42 mi4953-2354600-1954600-1956217(Top 22%)5557(Top 35%)5557(Top 98%)
30K18.64 mi3.11 mi5727-7745218-6185218-6188609(Top 30%)6934(Top 43%)6934(Top 123%)
20M20.00 mi1.36 mi6082-3555486-2685486-26811207(Top 39%)8126(Top 50%)8126(Top 144%)
21M21.00 mi1.00 mi6249-1675605-1195605-11910411(Top 37%)7549(Top 47%)7549(Top 134%)
35K21.75 mi0.75 mi6641-3925878-2735878-27319139(Top 67%)11558(Top 72%)11558(Top 205%)
23M23.00 mi1.25 mi6780-1395944-665944-6610476(Top 37%)7456(Top 46%)7456(Top 132%)
24M24.00 mi1.00 mi7006-2266067-1236067-12312753(Top 45%)8516(Top 53%)8516(Top 151%)
40K24.85 mi0.85 mi7421-4156305-2386305-23818721(Top 66%)11178(Top 69%)11178(Top 198%)
25.2M25.20 mi0.35 mi7415+66288+176288+178151(Top 29%)5975(Top 37%)5975(Top 106%)
Finish26.22 mi1.02 mi7411+46252+366252+368159(Top 29%)5992(Top 37%)5992(Top 106%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

4986

Males

4638

M18-39

4638

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4236

Males

3981

M18-39

3981

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

4986

Males

4638

M18-39

4638

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5533

Males

5050

M18-39

5050

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5442

Males

4997

M18-39

4997

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6217

Males

5557

M18-39

5557

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8609

Males

6934

M18-39

6934

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

11207

Males

8126

M18-39

8126

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

10411

Males

7549

M18-39

7549

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

19139

Males

11558

M18-39

11558

35K→23M

21.8 - 23.0 mi

Top 37%
×5stories
+23ft-63ft

Overall

10476

Males

7456

M18-39

7456

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12753

Males

8516

M18-39

8516

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18721

Males

11178

M18-39

11178

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8151

Males

5975

M18-39

5975

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8159

Males

5992

M18-39

5992

Passing Analysis

Category:
Athletes Passed
653
Passed By
3669
Net Change
-3016
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4395
5K → 10K18090+90#4395#4305
10K → 15K50238-188#4305#4493
15K → 20K64265-201#4493#4694
20K → Half1438-24#4694#4718
Half → 25K53288-235#4718#4953
25K → 30K56830-774#4953#5727
30K → 20M12367-355#5727#6082
20M → 21M30197-167#6082#6249
21M → 35K8400-392#6249#6641
35K → 23M52191-139#6641#6780
23M → 24M25251-226#6780#7006
24M → 40K9424-415#7006#7421
40K → 25.2M3024+6#7421#7415
25.2M → Finish7066+4#7415#7411
TOTALS6533669-3016
📊

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