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BOSTON MARATHON 2025

Carl Busilacchi

Bib: 12743•M

QC

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
9:26/mi
29:18
↑ 97↓ 3451.5%
10K· 6.21 mi
9:23/mi
58:26
↑ 79↓ 1380.4%
15K· 9.32 mi
9:25/mi
1:27:40
↑ 67↓ 78
20K· 12.43 mi
9:11/mi
1:56:13
↑ 106↓ 860.1%
Half· 13.11 mi
8:55/mi
2:02:18
↑ 19↓ 370.5%
25K· 15.53 mi
9:06/mi
2:24:21
↑ 66↓ 880.2%
30K· 18.64 mi
9:25/mi
2:53:37
↑ 181↓ 1480.2%
20M
9:22/mi
3:06:21
↑ 64↓ 500.2%
21M
9:58/mi
3:16:19
↑ 106↓ 241.6%
35K· 21.75 mi
9:21/mi
3:23:19
↑ 17↓ 861.7%
23M
9:30/mi
3:35:13
↑ 23↓ 630.6%
24M
9:35/mi
3:44:48
↓ 821.3%
40K· 24.85 mi
9:42/mi
3:53:06
↓ 200.3%
25.2M
10:47/mi
3:56:49
↑ 13↓ 160.2%
Finish· 26.22 mi
9:47/mi
4:06:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:18
Pace9:20 /mi
2nd Half
Distance13.11 mi
Time2:04:29
Pace9:30 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:2029:189:2629:18
9:26
-
10K
6.21 mi11:26:2858:269:2429:08
9:23
-0:03
15K
9.32 mi11:55:421:27:409:2429:14
9:25
+0:02
20K
12.43 mi12:24:151:56:139:2128:33
9:11
-0:14
Half
13.11 mi12:30:202:02:189:206:05
8:55
-0:16
25K
15.53 mi12:52:232:24:219:1822:03
9:06
+0:11
30K
18.64 mi13:21:392:53:379:1929:16
9:25
+0:19
20M
20.00 mi13:34:233:06:219:1912:44
9:22
-0:03
21M
21.00 mi13:44:213:16:199:219:58
9:58
+0:36
35K
21.75 mi13:51:213:23:199:217:00
9:21
-0:37
23M
23.00 mi14:03:153:35:139:2111:54
9:30
+0:09
24M
24.00 mi14:12:503:44:489:229:35
9:35
+0:05
40K
24.85 mi14:21:083:53:069:238:18
9:42
+0:07
25.2M
25.20 mi14:24:513:56:499:243:43
10:47
+1:05
Finish
26.22 mi14:34:494:06:479:259:58
9:47
-1:00

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

8:55 /mi

Average Pace

9:25 /mi

Slowest Pace

10:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

56:41

23% of race

Time at Steady Pace

2:38:09

64% of race

Time at Slower Pace

31:57

13% of race

Average Pace: 9:25 /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 mi10:57:2029:189:2629:18
9:26
#24006
10K
6.21 mi11:26:2858:269:2429:08
9:23
#23893
15K
9.32 mi11:55:421:27:409:2429:14
9:25
#23769
20K
12.43 mi12:24:151:56:139:2128:33
9:11
#23286
Half
13.11 mi12:30:202:02:189:206:05
8:55
#23211
25K
15.53 mi12:52:232:24:219:1822:03
9:06
#22760
30K
18.64 mi13:21:392:53:379:1929:16
9:25
#22203
20M
20.00 mi13:34:233:06:219:1912:44
9:22
#21943
21M
21.00 mi13:44:213:16:199:219:58
9:58
#21710
35K
21.75 mi13:51:213:23:199:217:00
9:21
#21644
23M
23.00 mi14:03:153:35:139:2111:54
9:30
#21455
24M
24.00 mi14:12:503:44:489:229:35
9:35
#21378
40K
24.85 mi14:21:083:53:069:238:18
9:42
#21295
25.2M
25.20 mi14:24:513:56:499:243:43
10:47
#21276
Finish
26.22 mi14:34:494:06:479:259:58
9:47
#21308
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi24006142431424323494(Top 83%)14057(Top 87%)14057(Top 589%)
10K6.21 mi3.10 mi23893+11314202+4114202+4123763(Top 84%)14152(Top 88%)14152(Top 593%)
15K9.32 mi3.11 mi23769+12414151+5114151+5123494(Top 83%)14057(Top 87%)14057(Top 589%)
20K12.43 mi3.11 mi23286+48313946+20513946+20521839(Top 77%)13280(Top 82%)13280(Top 557%)
Half13.11 mi0.68 mi23211+7513913+3313913+3321453(Top 76%)13109(Top 81%)13109(Top 549%)
25K15.53 mi2.42 mi22760+45113690+22313690+22320334(Top 72%)12566(Top 78%)12566(Top 527%)
30K18.64 mi3.11 mi22203+55713409+28113409+28119619(Top 69%)12114(Top 75%)12114(Top 508%)
20M20.00 mi1.36 mi21943+26013282+12713282+12718616(Top 66%)11511(Top 71%)11511(Top 482%)
21M21.00 mi1.00 mi21710+23313153+12913153+12918170(Top 64%)11244(Top 70%)11244(Top 471%)
35K21.75 mi0.75 mi21644+6613110+4313110+4319790(Top 70%)11874(Top 74%)11874(Top 498%)
23M23.00 mi1.25 mi21455+18912995+11512995+11518725(Top 66%)11320(Top 70%)11320(Top 474%)
24M24.00 mi1.00 mi21378+7712941+5412941+5419921(Top 70%)11838(Top 74%)11838(Top 496%)
40K24.85 mi0.85 mi21295+8312878+6312878+6319500(Top 69%)11563(Top 72%)11563(Top 485%)
25.2M25.20 mi0.35 mi21276+1912861+1712861+1719950(Top 70%)11772(Top 73%)11772(Top 493%)
Finish26.22 mi1.02 mi21308-3212859+212859+222188(Top 78%)12871(Top 80%)12871(Top 539%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

23494

Males

14057

M45-49

14057

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23763

Males

14152

M45-49

14152

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

23494

Males

14057

M45-49

14057

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

21839

Males

13280

M45-49

13280

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

21453

Males

13109

M45-49

13109

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

20334

Males

12566

M45-49

12566

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

19619

Males

12114

M45-49

12114

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

18616

Males

11511

M45-49

11511

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

18170

Males

11244

M45-49

11244

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

19790

Males

11874

M45-49

11874

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

18725

Males

11320

M45-49

11320

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

19921

Males

11838

M45-49

11838

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19500

Males

11563

M45-49

11563

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19950

Males

11772

M45-49

11772

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

22188

Males

12871

M45-49

12871

Passing Analysis

Category:
Athletes Passed
3144
Passed By
446
Net Change
+2698
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24006
5K → 10K303190+113#24006#23893
10K → 15K21591+124#23893#23769
15K → 20K4896+483#23769#23286
20K → Half805+75#23286#23211
Half → 25K4554+451#23211#22760
25K → 30K5669+557#22760#22203
30K → 20M2633+260#22203#21943
20M → 21M2407+233#21943#21710
21M → 35K7610+66#21710#21644
35K → 23M20112+189#21644#21455
23M → 24M9215+77#21455#21378
24M → 40K9512+83#21378#21295
40K → 25.2M3516+19#21295#21276
25.2M → Finish3466-32#21276#21308
TOTALS3144446+2698
📊

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