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BOSTON MARATHON 2025

Matthew Duca

Bib: 28308•M

MA

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
29:59
Rank: #24698
Start → 5K
29:59 | 9:39/mi
10K· 6.21 mi
59:36
Rank: #24434 (+264)
5K → 10K
29:37 | 9:32/mi
15K· 9.32 mi
1:31:07
Rank: #24768 (-334)
10K → 15K
31:31 | 10:09/mi
20K· 12.43 mi
2:09:34
Rank: #25849 (-1081)
15K → 20K
38:27 | 12:23/mi
Half· 13.11 mi
2:19:49
Rank: #26258 (-409)
20K → Half
10:15 | 15:01/mi
25K· 15.53 mi
2:53:27
Rank: #26738 (-480)
Half → 25K
33:38 | 13:52/mi
30K· 18.64 mi
3:31:47
Rank: #26613 (+125)
25K → 30K
38:20 | 12:20/mi
20M
3:46:52
Rank: #26443 (+170)
30K → 20M
15:05 | 11:06/mi
21M
4:00:40
Rank: #26422 (+21)
20M → 21M
13:48 | 13:48/mi
35K· 21.75 mi
4:11:44
Rank: #26538 (-116)
21M → 35K
11:04 | 14:48/mi
23M
4:31:30
Rank: #26741 (-203)
35K → 23M
19:46 | 15:47/mi
24M
4:47:32
Rank: #26903 (-162)
23M → 24M
16:02 | 16:02/mi
40K· 24.85 mi
5:01:14
Rank: #26993 (-90)
24M → 40K
13:42 | 16:02/mi
25.2M
5:06:32
Rank: #27005 (-12)
40K → 25.2M
5:18 | 15:22/mi
Finish· 26.22 mi
5:19:46
Rank: #27052 (-47)
25.2M → Finish
13:14 | 12:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:19:49
Pace10:40 /mi
2nd Half
Distance13.11 mi
Time2:59:57
Pace13:44 /mi
📊Positive Split: 28.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:5929:599:3929:59
9:39
-
10K
6.21 mi12:19:3659:369:3629:37
9:32
-0:07
15K
9.32 mi12:51:071:31:079:4731:31
10:09
+0:37
20K
12.43 mi13:29:342:09:3410:2638:27
12:23
+2:14
Half
13.11 mi13:39:492:19:4910:4010:15
15:01
+2:38
25K
15.53 mi14:13:272:53:2711:1033:38
13:52
-1:09
30K
18.64 mi14:51:473:31:4711:2238:20
12:20
-1:32
20M
20.00 mi15:06:523:46:5211:2115:05
11:06
-1:14
21M
21.00 mi15:20:404:00:4011:2813:48
13:48
+2:42
35K
21.75 mi15:31:444:11:4411:3511:04
14:48
+1:00
23M
23.00 mi15:51:304:31:3011:4819:46
15:47
+0:59
24M
24.00 mi16:07:324:47:3211:5916:02
16:02
+0:15
40K
24.85 mi16:21:145:01:1412:0713:42
16:02
0:00
25.2M
25.20 mi16:26:325:06:3212:105:18
15:22
-0:40
Finish
26.22 mi16:39:465:19:4612:1213:14
12:59
-2:23

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

9:32 /mi

Average Pace

12:12 /mi

Slowest Pace

16:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:02:59

57% of race

Time at Steady Pace

1:11:44

22% of race

Time at Slower Pace

1:05:03

20% of race

Average Pace: 12:12 /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 mi11:49:5929:599:3929:59
9:39
#24698
10K
6.21 mi12:19:3659:369:3629:37
9:32
#24434
15K
9.32 mi12:51:071:31:079:4731:31
10:09
#24768
20K
12.43 mi13:29:342:09:3410:2638:27
12:23
#25849
Half
13.11 mi13:39:492:19:4910:4010:15
15:01
#26258
25K
15.53 mi14:13:272:53:2711:1033:38
13:52
#26738
30K
18.64 mi14:51:473:31:4711:2238:20
12:20
#26613
20M
20.00 mi15:06:523:46:5211:2115:05
11:06
#26443
21M
21.00 mi15:20:404:00:4011:2813:48
13:48
#26422
35K
21.75 mi15:31:444:11:4411:3511:04
14:48
#26538
23M
23.00 mi15:51:304:31:3011:4819:46
15:47
#26741
24M
24.00 mi16:07:324:47:3211:5916:02
16:02
#26903
40K
24.85 mi16:21:145:01:1412:0713:42
16:02
#26993
25.2M
25.20 mi16:26:325:06:3212:105:18
15:22
#27005
Finish
26.22 mi16:39:465:19:4612:1213:14
12:59
#27052
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24698145781457825300(Top 89%)14835(Top 92%)14835(Top 263%)
10K6.21 mi3.10 mi24434+26414459+11914459+11924193(Top 85%)14333(Top 89%)14333(Top 254%)
15K9.32 mi3.11 mi24768-33414608-14914608-14925300(Top 89%)14835(Top 92%)14835(Top 263%)
20K12.43 mi3.11 mi25849-108115078-47015078-47027421(Top 97%)15697(Top 97%)15697(Top 278%)
Half13.11 mi0.68 mi26258-40915268-19015268-19028351(Top 100%)16074(Top 100%)16074(Top 285%)
25K15.53 mi2.42 mi26738-48015447-17915447-17927825(Top 98%)15850(Top 98%)15850(Top 281%)
30K18.64 mi3.11 mi26613+12515375+7215375+7225991(Top 92%)14987(Top 93%)14987(Top 266%)
20M20.00 mi1.36 mi26443+17015289+8615289+8623805(Top 84%)13896(Top 86%)13896(Top 246%)
21M21.00 mi1.00 mi26422+2115271+1815271+1826013(Top 92%)14897(Top 92%)14897(Top 264%)
35K21.75 mi0.75 mi26538-11615316-4515316-4528020(Top 99%)15863(Top 98%)15863(Top 281%)
23M23.00 mi1.25 mi26741-20315393-7715393-7728112(Top 99%)15911(Top 99%)15911(Top 282%)
24M24.00 mi1.00 mi26903-16215455-6215455-6228233(Top 99%)15980(Top 99%)15980(Top 283%)
40K24.85 mi0.85 mi26993-9015488-3315488-3328106(Top 99%)15904(Top 99%)15904(Top 282%)
25.2M25.20 mi0.35 mi27005-1215492-415492-427369(Top 96%)15465(Top 96%)15465(Top 274%)
Finish26.22 mi1.02 mi27052-4715504-1215504-1227623(Top 97%)15633(Top 97%)15633(Top 277%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

25300

Males

14835

M18-39

14835

5K→10K

3.1 - 6.2 mi

Top 85%
×5stories
+79ft-138ft

Overall

24193

Males

14333

M18-39

14333

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

25300

Males

14835

M18-39

14835

15K→20K

9.3 - 12.4 mi

Top 97%
×5stories
+106ft-86ft

Overall

27421

Males

15697

M18-39

15697

20K→Half

12.4 - 13.1 mi

Top 100%
×2stories
+19ft-37ft

Overall

28351

Males

16074

M18-39

16074

Half→25K

13.1 - 15.5 mi

Top 98%
×4stories
+66ft-88ft

Overall

27825

Males

15850

M18-39

15850

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

25991

Males

14987

M18-39

14987

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

23805

Males

13896

M18-39

13896

20M→21M

20.0 - 21.0 mi

Top 92%
×8stories
+106ft-24ft

Overall

26013

Males

14897

M18-39

14897

21M→35K

21.0 - 21.8 mi

Top 99%
×7stories
+17ft-86ft

Overall

28020

Males

15863

M18-39

15863

35K→23M

21.8 - 23.0 mi

Top 99%
×5stories
+23ft-63ft

Overall

28112

Males

15911

M18-39

15911

23M→24M

23.0 - 24.0 mi

Top 99%
×6stories
+12ft-82ft

Overall

28233

Males

15980

M18-39

15980

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

28106

Males

15904

M18-39

15904

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

27369

Males

15465

M18-39

15465

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2stories
+22ft-21ft

Overall

27623

Males

15633

M18-39

15633

Passing Analysis

Category:
Athletes Passed
834
Passed By
3188
Net Change
-2354
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24698
5K → 10K35288+264#24698#24434
10K → 15K49383-334#24434#24768
15K → 20K61087-1081#24768#25849
20K → Half1410-409#25849#26258
Half → 25K8488-480#26258#26738
25K → 30K15530+125#26738#26613
30K → 20M1722+170#26613#26443
20M → 21M5231+21#26443#26422
21M → 35K4120-116#26422#26538
35K → 23M10213-203#26538#26741
23M → 24M9171-162#26741#26903
24M → 40K494-90#26903#26993
40K → 25.2M517-12#26993#27005
25.2M → Finish754-47#27005#27052
TOTALS8343188-2354
📊

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