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BOSTON MARATHON 2025

Marcus Lostracco

Bib: 7247•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 19%
Division (M18-39)
#0 / 5642
Top 42%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:39
Rank: #4997
Start → 5K
20:39 | 6:39/mi
10K· 6.21 mi
41:21
Rank: #4967 (+30)
5K → 10K
20:42 | 6:40/mi
15K· 9.32 mi
1:02:19
Rank: #5118 (-151)
10K → 15K
20:58 | 6:45/mi
20K· 12.43 mi
1:23:08
Rank: #4905 (+213)
15K → 20K
20:49 | 6:42/mi
Half· 13.11 mi
1:27:34
Rank: #4831 (+74)
20K → Half
4:26 | 6:30/mi
25K· 15.53 mi
1:43:29
Rank: #4475 (+356)
Half → 25K
15:55 | 6:34/mi
30K· 18.64 mi
2:04:32
Rank: #4155 (+320)
25K → 30K
21:03 | 6:47/mi
20M
2:13:41
Rank: #3999 (+156)
30K → 20M
9:09 | 6:44/mi
21M
2:20:51
Rank: #3899 (+100)
20M → 21M
7:10 | 7:10/mi
35K· 21.75 mi
2:25:47
Rank: #3847 (+52)
21M → 35K
4:56 | 6:36/mi
23M
2:34:12
Rank: #3709 (+138)
35K → 23M
8:25 | 6:43/mi
24M
2:40:48
Rank: #3608 (+101)
23M → 24M
6:36 | 6:36/mi
40K· 24.85 mi
2:46:29
Rank: #3493 (+115)
24M → 40K
5:41 | 6:39/mi
25.2M
2:48:59
Rank: #3455 (+38)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:55:26
Rank: #3344 (+111)
25.2M → Finish
6:27 | 6:20/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:27:34
Pace6:41 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:27:52
Pace6:42 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:1120:396:3920:39
6:39
-
10K
6.21 mi10:48:5341:216:3920:42
6:40
+0:01
15K
9.32 mi11:09:511:02:196:4120:58
6:45
+0:05
20K
12.43 mi11:30:401:23:086:4120:49
6:42
-0:03
Half
13.11 mi11:35:061:27:346:414:26
6:30
-0:12
25K
15.53 mi11:51:011:43:296:4015:55
6:34
+0:04
30K
18.64 mi12:12:042:04:326:4121:03
6:47
+0:13
20M
20.00 mi12:21:132:13:416:419:09
6:44
-0:03
21M
21.00 mi12:28:232:20:516:427:10
7:10
+0:26
35K
21.75 mi12:33:192:25:476:424:56
6:36
-0:34
23M
23.00 mi12:41:442:34:126:428:25
6:43
+0:07
24M
24.00 mi12:48:202:40:486:426:36
6:36
-0:07
40K
24.85 mi12:54:012:46:296:425:41
6:39
+0:03
25.2M
25.20 mi12:56:312:48:596:422:30
7:15
+0:36
Finish
26.22 mi13:02:582:55:266:426:27
6:20
-0:55

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

6:20 /mi

Average Pace

6:42 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:46

94% of race

Time at Steady Pace

9:40

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:41 /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 mi10:28:1120:396:3920:39
6:39
#4997
10K
6.21 mi10:48:5341:216:3920:42
6:40
#4967
15K
9.32 mi11:09:511:02:196:4120:58
6:45
#5118
20K
12.43 mi11:30:401:23:086:4120:49
6:42
#4905
Half
13.11 mi11:35:061:27:346:414:26
6:30
#4831
25K
15.53 mi11:51:011:43:296:4015:55
6:34
#4475
30K
18.64 mi12:12:042:04:326:4121:03
6:47
#4155
20M
20.00 mi12:21:132:13:416:419:09
6:44
#3999
21M
21.00 mi12:28:232:20:516:427:10
7:10
#3899
35K
21.75 mi12:33:192:25:476:424:56
6:36
#3847
23M
23.00 mi12:41:442:34:126:428:25
6:43
#3709
24M
24.00 mi12:48:202:40:486:426:36
6:36
#3608
40K
24.85 mi12:54:012:46:296:425:41
6:39
#3493
25.2M
25.20 mi12:56:312:48:596:422:30
7:15
#3455
Finish
26.22 mi13:02:582:55:266:426:27
6:20
#3344
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4997467146715563(Top 20%)5095(Top 32%)5095(Top 90%)
10K6.21 mi3.10 mi4967+304633+384633+385004(Top 18%)4670(Top 29%)4670(Top 83%)
15K9.32 mi3.11 mi5118-1514765-1324765-1325563(Top 20%)5095(Top 32%)5095(Top 90%)
20K12.43 mi3.11 mi4905+2134572+1934572+1934437(Top 16%)4141(Top 26%)4141(Top 73%)
Half13.11 mi0.68 mi4831+744502+704502+703681(Top 13%)3481(Top 22%)3481(Top 62%)
25K15.53 mi2.42 mi4475+3564188+3144188+3143239(Top 11%)3067(Top 19%)3067(Top 54%)
30K18.64 mi3.11 mi4155+3203893+2953893+2953299(Top 12%)3087(Top 19%)3087(Top 55%)
20M20.00 mi1.36 mi3999+1563750+1433750+1432638(Top 9%)2480(Top 15%)2480(Top 44%)
21M21.00 mi1.00 mi3899+1003657+933657+933006(Top 11%)2780(Top 17%)2780(Top 49%)
35K21.75 mi0.75 mi3847+523606+513606+512951(Top 10%)2723(Top 17%)2723(Top 48%)
23M23.00 mi1.25 mi3709+1383480+1263480+1262367(Top 8%)2205(Top 14%)2205(Top 39%)
24M24.00 mi1.00 mi3608+1013381+993381+992510(Top 9%)2314(Top 14%)2314(Top 41%)
40K24.85 mi0.85 mi3493+1153272+1093272+1092173(Top 8%)1999(Top 12%)1999(Top 35%)
25.2M25.20 mi0.35 mi3455+383235+373235+372369(Top 8%)2122(Top 13%)2122(Top 38%)
Finish26.22 mi1.02 mi3344+1113132+1033132+1032026(Top 7%)1863(Top 12%)1863(Top 33%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5563

Males

5095

M18-39

5095

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

5004

Males

4670

M18-39

4670

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5563

Males

5095

M18-39

5095

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4437

Males

4141

M18-39

4141

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3681

Males

3481

M18-39

3481

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3239

Males

3067

M18-39

3067

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3299

Males

3087

M18-39

3087

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2638

Males

2480

M18-39

2480

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3006

Males

2780

M18-39

2780

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2951

Males

2723

M18-39

2723

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2367

Males

2205

M18-39

2205

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2510

Males

2314

M18-39

2314

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2173

Males

1999

M18-39

1999

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2369

Males

2122

M18-39

2122

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

2026

Males

1863

M18-39

1863

Passing Analysis

Category:
Athletes Passed
2149
Passed By
496
Net Change
+1653
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4997
5K → 10K188158+30#4997#4967
10K → 15K74225-151#4967#5118
15K → 20K24330+213#5118#4905
20K → Half784+74#4905#4831
Half → 25K3582+356#4831#4475
25K → 30K33414+320#4475#4155
30K → 20M1626+156#4155#3999
20M → 21M11515+100#3999#3899
21M → 35K619+52#3899#3847
35K → 23M1457+138#3847#3709
23M → 24M11110+101#3709#3608
24M → 40K1205+115#3608#3493
40K → 25.2M446+38#3493#3455
25.2M → Finish1165+111#3455#3344
TOTALS2149496+1653
📊

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