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BOSTON MARATHON 2025

Xavier Duclos

Bib: 18492•M

FL

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
7:50/mi
24:20
↑ 97↓ 3451.5%
10K· 6.21 mi
8:00/mi
49:11
↑ 79↓ 1380.4%
15K· 9.32 mi
7:53/mi
1:13:42
↑ 67↓ 78
20K· 12.43 mi
8:08/mi
1:38:58
↑ 106↓ 860.1%
Half· 13.11 mi
8:04/mi
1:44:28
↑ 19↓ 370.5%
25K· 15.53 mi
8:43/mi
2:05:36
↑ 66↓ 880.2%
30K· 18.64 mi
9:31/mi
2:35:10
↑ 181↓ 1480.2%
20M
9:48/mi
2:48:29
↑ 64↓ 500.2%
21M
11:41/mi
3:00:10
↑ 106↓ 241.6%
35K· 21.75 mi
9:48/mi
3:07:30
↑ 17↓ 861.7%
23M
9:56/mi
3:19:56
↑ 23↓ 630.6%
24M
9:58/mi
3:29:54
↓ 821.3%
40K· 24.85 mi
10:34/mi
3:38:56
↓ 200.3%
25.2M
10:55/mi
3:42:42
↑ 13↓ 160.2%
Finish· 26.22 mi
9:45/mi
3:52:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:28
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time2:08:10
Pace9:47 /mi
📊Positive Split: 22.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3924:207:5024:20
7:50
-
10K
6.21 mi11:40:3049:117:5524:51
8:00
+0:10
15K
9.32 mi12:05:011:13:427:5424:31
7:53
-0:07
20K
12.43 mi12:30:171:38:587:5825:16
8:08
+0:15
Half
13.11 mi12:35:471:44:287:585:30
8:04
-0:04
25K
15.53 mi12:56:552:05:368:0521:08
8:43
+0:39
30K
18.64 mi13:26:292:35:108:1929:34
9:31
+0:48
20M
20.00 mi13:39:482:48:298:2513:19
9:48
+0:17
21M
21.00 mi13:51:293:00:108:3511:41
11:41
+1:53
35K
21.75 mi13:58:493:07:308:377:20
9:48
-1:53
23M
23.00 mi14:11:153:19:568:4212:26
9:56
+0:08
24M
24.00 mi14:21:133:29:548:459:58
9:58
+0:02
40K
24.85 mi14:30:153:38:568:499:02
10:34
+0:36
25.2M
25.20 mi14:34:013:42:428:503:46
10:55
+0:21
Finish
26.22 mi14:43:573:52:388:539:56
9:45
-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

7:50 /mi

Average Pace

8:53 /mi

Slowest Pace

11:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:36

54% of race

Time at Steady Pace

1:22:33

35% of race

Time at Slower Pace

24:29

11% of race

Average Pace: 8:52 /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 mi11:15:3924:207:5024:20
7:50
#15097
10K
6.21 mi11:40:3049:117:5524:51
8:00
#15825
15K
9.32 mi12:05:011:13:427:5424:31
7:53
#15554
20K
12.43 mi12:30:171:38:587:5825:16
8:08
#15669
Half
13.11 mi12:35:471:44:287:585:30
8:04
#15697
25K
15.53 mi12:56:552:05:368:0521:08
8:43
#16206
30K
18.64 mi13:26:292:35:108:1929:34
9:31
#16976
20M
20.00 mi13:39:482:48:298:2513:19
9:48
#17298
21M
21.00 mi13:51:293:00:108:3511:41
11:41
#17891
35K
21.75 mi13:58:493:07:308:377:20
9:48
#18067
23M
23.00 mi14:11:153:19:568:4212:26
9:56
#18245
24M
24.00 mi14:21:133:29:548:459:58
9:58
#18421
40K
24.85 mi14:30:153:38:568:499:02
10:34
#18666
25.2M
25.20 mi14:34:013:42:428:503:46
10:55
#18712
Finish
26.22 mi14:43:573:52:388:539:56
9:45
#18875
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15097104671046715163(Top 53%)10451(Top 65%)10451(Top 634%)
10K6.21 mi3.10 mi15825-72810749-28210749-28216461(Top 58%)11015(Top 68%)11015(Top 668%)
15K9.32 mi3.11 mi15554+27110635+11410635+11415163(Top 53%)10451(Top 65%)10451(Top 634%)
20K12.43 mi3.11 mi15669-11510658-2310658-2315866(Top 56%)10685(Top 66%)10685(Top 648%)
Half13.11 mi0.68 mi15697-2810664-610664-616359(Top 58%)10935(Top 68%)10935(Top 664%)
25K15.53 mi2.42 mi16206-50910876-21210876-21218487(Top 65%)11737(Top 73%)11737(Top 712%)
30K18.64 mi3.11 mi16976-77011124-24811124-24819997(Top 70%)12283(Top 76%)12283(Top 745%)
20M20.00 mi1.36 mi17298-32211224-10011224-10020289(Top 71%)12276(Top 76%)12276(Top 745%)
21M21.00 mi1.00 mi17891-59311469-24511469-24522983(Top 81%)13429(Top 83%)13429(Top 815%)
35K21.75 mi0.75 mi18067-17611525-5611525-5621316(Top 75%)12578(Top 78%)12578(Top 763%)
23M23.00 mi1.25 mi18245-17811568-4311568-4320262(Top 71%)12033(Top 75%)12033(Top 730%)
24M24.00 mi1.00 mi18421-17611623-5511623-5521246(Top 75%)12462(Top 77%)12462(Top 756%)
40K24.85 mi0.85 mi18666-24511703-8011703-8022083(Top 78%)12781(Top 79%)12781(Top 776%)
25.2M25.20 mi0.35 mi18712-4611708-511708-520354(Top 72%)11954(Top 74%)11954(Top 725%)
Finish26.22 mi1.02 mi18875-16311762-5411762-5422064(Top 78%)12817(Top 80%)12817(Top 778%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

15163

Males

10451

M55-59

10451

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

16461

Males

11015

M55-59

11015

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

15163

Males

10451

M55-59

10451

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

15866

Males

10685

M55-59

10685

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

16359

Males

10935

M55-59

10935

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

18487

Males

11737

M55-59

11737

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

19997

Males

12283

M55-59

12283

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20289

Males

12276

M55-59

12276

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

22983

Males

13429

M55-59

13429

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

21316

Males

12578

M55-59

12578

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

20262

Males

12033

M55-59

12033

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

21246

Males

12462

M55-59

12462

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22083

Males

12781

M55-59

12781

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20354

Males

11954

M55-59

11954

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

22064

Males

12817

M55-59

12817

Passing Analysis

Category:
Athletes Passed
1049
Passed By
4827
Net Change
-3778
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15097
5K → 10K104832-728#15097#15825
10K → 15K35887+271#15825#15554
15K → 20K179294-115#15554#15669
20K → Half1543-28#15669#15697
Half → 25K61570-509#15697#16206
25K → 30K76846-770#16206#16976
30K → 20M40362-322#16976#17298
20M → 21M19612-593#17298#17891
21M → 35K28204-176#17891#18067
35K → 23M59237-178#18067#18245
23M → 24M43219-176#18245#18421
24M → 40K23268-245#18421#18666
40K → 25.2M2571-46#18666#18712
25.2M → Finish19182-163#18712#18875
TOTALS10494827-3778
📊

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