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BOSTON MARATHON 2025

Dante Demarco

Bib: 31533•M

MA

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
9:00/mi
27:59
↑ 97↓ 3451.5%
10K· 6.21 mi
9:14/mi
56:41
↑ 79↓ 1380.4%
15K· 9.32 mi
8:56/mi
1:24:27
↑ 67↓ 78
20K· 12.43 mi
10:21/mi
1:56:35
↑ 106↓ 860.1%
Half· 13.11 mi
9:17/mi
2:02:55
↑ 19↓ 370.5%
25K· 15.53 mi
9:58/mi
2:27:05
↑ 66↓ 880.2%
30K· 18.64 mi
11:47/mi
3:03:42
↑ 181↓ 1480.2%
20M
13:36/mi
3:22:11
↑ 64↓ 500.2%
21M
12:46/mi
3:34:57
↑ 106↓ 241.6%
35K· 21.75 mi
12:29/mi
3:44:17
↑ 17↓ 861.7%
23M
14:50/mi
4:02:51
↑ 23↓ 630.6%
24M
11:12/mi
4:14:03
↓ 821.3%
40K· 24.85 mi
10:11/mi
4:22:45
↓ 200.3%
25.2M
18:10/mi
4:29:01
↑ 13↓ 160.2%
Finish· 26.22 mi
9:38/mi
4:38:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:55
Pace9:23 /mi
2nd Half
Distance13.11 mi
Time2:35:55
Pace11:54 /mi
📊Positive Split: 26.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:0827:599:0027:59
9:00
-
10K
6.21 mi12:20:5056:419:0728:42
9:14
+0:14
15K
9.32 mi12:48:361:24:279:0427:46
8:56
-0:18
20K
12.43 mi13:20:441:56:359:2332:08
10:21
+1:25
Half
13.11 mi13:27:042:02:559:236:20
9:17
-1:04
25K
15.53 mi13:51:142:27:059:2824:10
9:58
+0:41
30K
18.64 mi14:27:513:03:429:5136:37
11:47
+1:49
20M
20.00 mi14:46:203:22:1110:0718:29
13:36
+1:49
21M
21.00 mi14:59:063:34:5710:1412:46
12:46
-0:50
35K
21.75 mi15:08:263:44:1710:199:20
12:29
-0:17
23M
23.00 mi15:27:004:02:5110:3418:34
14:50
+2:21
24M
24.00 mi15:38:124:14:0310:3511:12
11:12
-3:38
40K
24.85 mi15:46:544:22:4510:348:42
10:11
-1:01
25.2M
25.20 mi15:53:104:29:0110:416:16
18:10
+7:59
Finish
26.22 mi16:02:594:38:5010:399:49
9:38
-8:32

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

8:56 /mi

Average Pace

10:39 /mi

Slowest Pace

18:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

55:45

20% of race

Time at Steady Pace

2:01:03

43% of race

Time at Slower Pace

1:42:02

37% of race

Average Pace: 10:38 /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 mi11:52:0827:599:0027:59
9:00
#22429
10K
6.21 mi12:20:5056:419:0728:42
9:14
#22905
15K
9.32 mi12:48:361:24:279:0427:46
8:56
#22537
20K
12.43 mi13:20:441:56:359:2332:08
10:21
#23392
Half
13.11 mi13:27:042:02:559:236:20
9:17
#23358
25K
15.53 mi13:51:142:27:059:2824:10
9:58
#23316
30K
18.64 mi14:27:513:03:429:5136:37
11:47
#23834
20M
20.00 mi14:46:203:22:1110:0718:29
13:36
#24277
21M
21.00 mi14:59:063:34:5710:1412:46
12:46
#24319
35K
21.75 mi15:08:263:44:1710:199:20
12:29
#24434
23M
23.00 mi15:27:004:02:5110:3418:34
14:50
#24812
24M
24.00 mi15:38:124:14:0310:3511:12
11:12
#24790
40K
24.85 mi15:46:544:22:4510:348:42
10:11
#24687
25.2M
25.20 mi15:53:104:29:0110:416:16
18:10
#24829
Finish
26.22 mi16:02:594:38:5010:399:49
9:38
#24765
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi22429135001350021737(Top 77%)13284(Top 82%)13284(Top 806%)
10K6.21 mi3.10 mi22905-47613743-24313743-24323328(Top 82%)13954(Top 87%)13954(Top 847%)
15K9.32 mi3.11 mi22537+36813600+14313600+14321737(Top 77%)13284(Top 82%)13284(Top 806%)
20K12.43 mi3.11 mi23392-85513996-39613996-39624906(Top 88%)14635(Top 91%)14635(Top 888%)
Half13.11 mi0.68 mi23358+3413977+1913977+1922901(Top 81%)13760(Top 85%)13760(Top 835%)
25K15.53 mi2.42 mi23316+4213948+2913948+2923174(Top 82%)13827(Top 86%)13827(Top 839%)
30K18.64 mi3.11 mi23834-51814129-18114129-18125287(Top 89%)14671(Top 91%)14671(Top 890%)
20M20.00 mi1.36 mi24277-44314318-18914318-18926994(Top 95%)15371(Top 95%)15371(Top 933%)
21M21.00 mi1.00 mi24319-4214315+314315+324753(Top 87%)14251(Top 88%)14251(Top 865%)
35K21.75 mi0.75 mi24434-11514363-4814363-4826428(Top 93%)15061(Top 94%)15061(Top 914%)
23M23.00 mi1.25 mi24812-37814522-15914522-15927844(Top 98%)15754(Top 98%)15754(Top 956%)
24M24.00 mi1.00 mi24790+2214496+2614496+2624389(Top 86%)14013(Top 87%)14013(Top 850%)
40K24.85 mi0.85 mi24687+10314435+6114435+6121008(Top 74%)12289(Top 76%)12289(Top 746%)
25.2M25.20 mi0.35 mi24829-14214498-6314498-6328239(Top 99%)15986(Top 99%)15986(Top 970%)
Finish26.22 mi1.02 mi24765+6414457+4114457+4121666(Top 76%)12620(Top 78%)12620(Top 766%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21737

Males

13284

M55-59

13284

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

23328

Males

13954

M55-59

13954

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21737

Males

13284

M55-59

13284

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

24906

Males

14635

M55-59

14635

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

22901

Males

13760

M55-59

13760

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23174

Males

13827

M55-59

13827

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

25287

Males

14671

M55-59

14671

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

26994

Males

15371

M55-59

15371

20M→21M

20.0 - 21.0 mi

Top 87%
×8story building
+106ft-24ft

Overall

24753

Males

14251

M55-59

14251

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

26428

Males

15061

M55-59

15061

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

27844

Males

15754

M55-59

15754

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

24389

Males

14013

M55-59

14013

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

21008

Males

12289

M55-59

12289

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

28239

Males

15986

M55-59

15986

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

21666

Males

12620

M55-59

12620

Passing Analysis

Category:
Athletes Passed
1084
Passed By
3420
Net Change
-2336
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22429
5K → 10K94570-476#22429#22905
10K → 15K40234+368#22905#22537
15K → 20K32887-855#22537#23392
20K → Half5925+34#23392#23358
Half → 25K14098+42#23358#23316
25K → 30K48566-518#23316#23834
30K → 20M12455-443#23834#24277
20M → 21M5092-42#24277#24319
21M → 35K11126-115#24319#24434
35K → 23M7385-378#24434#24812
23M → 24M5230+22#24812#24790
24M → 40K1052+103#24790#24687
40K → 25.2M0142-142#24687#24829
25.2M → Finish728+64#24829#24765
TOTALS10843420-2336
📊

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