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BOSTON MARATHON 2025

Leonardo De Biasi

Bib: 10006•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
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
8:20/mi
25:54
↑ 97↓ 3451.5%
10K· 6.21 mi
8:25/mi
52:02
↑ 79↓ 1380.4%
15K· 9.32 mi
8:42/mi
1:19:05
↑ 67↓ 78
20K· 12.43 mi
8:57/mi
1:46:52
↑ 106↓ 860.1%
Half· 13.11 mi
8:34/mi
1:52:43
↑ 19↓ 370.5%
25K· 15.53 mi
9:10/mi
2:14:56
↑ 66↓ 880.2%
30K· 18.64 mi
9:34/mi
2:44:40
↑ 181↓ 1480.2%
20M
9:41/mi
2:57:50
↑ 64↓ 500.2%
21M
10:27/mi
3:08:17
↑ 106↓ 241.6%
35K· 21.75 mi
9:05/mi
3:15:05
↑ 17↓ 861.7%
23M
9:23/mi
3:26:50
↑ 23↓ 630.6%
24M
8:59/mi
3:35:49
↓ 821.3%
40K· 24.85 mi
9:00/mi
3:43:31
↓ 200.3%
25.2M
10:44/mi
3:47:13
↑ 13↓ 160.2%
Finish· 26.22 mi
9:00/mi
3:56:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:43
Pace8:36 /mi
2nd Half
Distance13.11 mi
Time2:03:40
Pace9:26 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:3325:548:2025:54
8:20
-
10K
6.21 mi11:48:4152:028:2226:08
8:25
+0:05
15K
9.32 mi12:15:441:19:058:2927:03
8:42
+0:17
20K
12.43 mi12:43:311:46:528:3627:47
8:57
+0:15
Half
13.11 mi12:49:221:52:438:365:51
8:34
-0:23
25K
15.53 mi13:11:352:14:568:4122:13
9:10
+0:36
30K
18.64 mi13:41:192:44:408:5029:44
9:34
+0:24
20M
20.00 mi13:54:292:57:508:5313:10
9:41
+0:07
21M
21.00 mi14:04:563:08:178:5810:27
10:27
+0:46
35K
21.75 mi14:11:443:15:058:586:48
9:05
-1:22
23M
23.00 mi14:23:293:26:509:0011:45
9:23
+0:18
24M
24.00 mi14:32:283:35:499:008:59
8:59
-0:24
40K
24.85 mi14:40:103:43:319:007:42
9:00
+0:01
25.2M
25.20 mi14:43:523:47:139:013:42
10:44
+1:44
Finish
26.22 mi14:53:023:56:239:019:10
9:00
-1:44

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

8:20 /mi

Average Pace

9:01 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

57:53

24% of race

Time at Steady Pace

1:49:42

46% of race

Time at Slower Pace

1:08:48

29% of race

Average Pace: 9:01 /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 mi11:22:3325:548:2025:54
8:20
#18944
10K
6.21 mi11:48:4152:028:2226:08
8:25
#19084
15K
9.32 mi12:15:441:19:058:2927:03
8:42
#19564
20K
12.43 mi12:43:311:46:528:3627:47
8:57
#19858
Half
13.11 mi12:49:221:52:438:365:51
8:34
#19854
25K
15.53 mi13:11:352:14:568:4122:13
9:10
#19980
30K
18.64 mi13:41:192:44:408:5029:44
9:34
#20055
20M
20.00 mi13:54:292:57:508:5313:10
9:41
#20037
21M
21.00 mi14:04:563:08:178:5810:27
10:27
#20020
35K
21.75 mi14:11:443:15:058:586:48
9:05
#19968
23M
23.00 mi14:23:293:26:509:0011:45
9:23
#19871
24M
24.00 mi14:32:283:35:499:008:59
8:59
#19757
40K
24.85 mi14:40:103:43:319:007:42
9:00
#19646
25.2M
25.20 mi14:43:523:47:139:013:42
10:44
#19647
Finish
26.22 mi14:53:023:56:239:019:10
9:00
#19634
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi18944120131201320522(Top 72%)12739(Top 79%)12739(Top 534%)
10K6.21 mi3.10 mi19084-14012079-6612079-6619255(Top 68%)12169(Top 76%)12169(Top 510%)
15K9.32 mi3.11 mi19564-48012296-21712296-21720522(Top 72%)12739(Top 79%)12739(Top 534%)
20K12.43 mi3.11 mi19858-29412406-11012406-11020670(Top 73%)12737(Top 79%)12737(Top 534%)
Half13.11 mi0.68 mi19854+412404+212404+219651(Top 69%)12325(Top 77%)12325(Top 517%)
25K15.53 mi2.42 mi19980-12612455-5112455-5120608(Top 73%)12673(Top 79%)12673(Top 531%)
30K18.64 mi3.11 mi20055-7512445+1012445+1020218(Top 71%)12391(Top 77%)12391(Top 519%)
20M20.00 mi1.36 mi20037+1812416+2912416+2919892(Top 70%)12117(Top 75%)12117(Top 508%)
21M21.00 mi1.00 mi20020+1712383+3312383+3319836(Top 70%)11969(Top 74%)11969(Top 502%)
35K21.75 mi0.75 mi19968+5212343+4012343+4018650(Top 66%)11328(Top 70%)11328(Top 475%)
23M23.00 mi1.25 mi19871+9712267+7612267+7618159(Top 64%)11054(Top 69%)11054(Top 463%)
24M24.00 mi1.00 mi19757+11412190+7712190+7717275(Top 61%)10605(Top 66%)10605(Top 444%)
40K24.85 mi0.85 mi19646+11112126+6412126+6416325(Top 57%)10074(Top 63%)10074(Top 422%)
25.2M25.20 mi0.35 mi19647-112116+1012116+1019792(Top 70%)11690(Top 73%)11690(Top 490%)
Finish26.22 mi1.02 mi19634+1312098+1812098+1819003(Top 67%)11357(Top 71%)11357(Top 476%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

20522

Males

12739

M45-49

12739

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

19255

Males

12169

M45-49

12169

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

20522

Males

12739

M45-49

12739

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

20670

Males

12737

M45-49

12737

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

19651

Males

12325

M45-49

12325

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

20608

Males

12673

M45-49

12673

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

20218

Males

12391

M45-49

12391

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

19892

Males

12117

M45-49

12117

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

19836

Males

11969

M45-49

11969

21M→35K

21.0 - 21.8 mi

Top 66%
×7story building
+17ft-86ft

Overall

18650

Males

11328

M45-49

11328

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

18159

Males

11054

M45-49

11054

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

17275

Males

10605

M45-49

10605

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16325

Males

10074

M45-49

10074

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19792

Males

11690

M45-49

11690

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

19003

Males

11357

M45-49

11357

Passing Analysis

Category:
Athletes Passed
1501
Passed By
2191
Net Change
-690
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18944
5K → 10K197337-140#18944#19084
10K → 15K67547-480#19084#19564
15K → 20K118412-294#19564#19858
20K → Half2723+4#19858#19854
Half → 25K123249-126#19854#19980
25K → 30K204279-75#19980#20055
30K → 20M11092+18#20055#20037
20M → 21M9982+17#20037#20020
21M → 35K7220+52#20020#19968
35K → 23M13639+97#19968#19871
23M → 24M13420+114#19871#19757
24M → 40K12110+111#19757#19646
40K → 25.2M3031-1#19646#19647
25.2M → Finish6350+13#19647#19634
TOTALS15012191-690
📊

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