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BOSTON MARATHON 2026

Marcus Lostracco

Bib: 6821•M

CA

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 15%
Gender (Male)
#0 / 16340
Top 25%
Age Group (M18-39)
#0 / 5723
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
20:37
3.11 mi
Rank: #5276
Start → 5K
20:37 | 6:39/mi
10K
41:25
6.21 mi
Rank: #5546 (-270)
5K → 10K
20:48 | 6:42/mi
15K
1:02:04
9.32 mi
Rank: #5442 (+104)
10K → 15K
20:39 | 6:39/mi
20K
1:22:53
12.43 mi
Rank: #5354 (+88)
15K → 20K
20:49 | 6:43/mi
HALF
1:27:24
13.11 mi
Rank: #5345 (+9)
20K → HALF
4:31 | 6:38/mi
25K
1:43:36
15.53 mi
Rank: #5213 (+132)
HALF → 25K
16:12 | 6:41/mi
30K
2:04:34
18.64 mi
Rank: #4924 (+289)
25K → 30K
20:58 | 6:45/mi
20M
2:13:44
20.00 mi
Rank: #4821 (+103)
30K → 20M
9:10 | 6:45/mi
21M
2:20:52
21.00 mi
Rank: #4754 (+67)
20M → 21M
7:08 | 7:08/mi
35K
2:25:42
21.75 mi
Rank: #4678 (+76)
21M → 35K
4:50 | 6:28/mi
23M
2:34:08
23.00 mi
Rank: #4582 (+96)
35K → 23M
8:26 | 6:45/mi
24M
2:40:45
24.00 mi
Rank: #4509 (+73)
23M → 24M
6:37 | 6:37/mi
40K
2:46:29
24.85 mi
Rank: #4445 (+64)
24M → 40K
5:44 | 6:43/mi
25.2M
2:48:54
25.20 mi
Rank: #4396 (+49)
40K → 25.2M
2:25 | 7:01/mi
FINISH
2:55:27
26.22 mi
Rank: #4337 (+59)
25.2M → FINISH
6:33 | 6:26/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:27:24
Pace6:41 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:28:03
Pace6:43 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:2420:376:3920:37
6:39
-
10K
6.21 mi10:46:1241:256:4020:48
6:42
+0:03
15K
9.32 mi11:06:511:02:046:4020:39
6:39
-0:03
20K
12.43 mi11:27:401:22:536:4120:49
6:43
+0:04
HALF
13.11 mi11:32:111:27:246:414:31
6:38
-0:05
25K
15.53 mi11:48:231:43:366:4116:12
6:41
+0:03
30K
18.64 mi12:09:212:04:346:4120:58
6:45
+0:04
20M
20.00 mi12:18:312:13:446:429:10
6:45
0:00
21M
21.00 mi12:25:392:20:526:437:08
7:08
+0:23
35K
21.75 mi12:30:292:25:426:424:50
6:28
-0:40
23M
23.00 mi12:38:552:34:086:438:26
6:45
+0:17
24M
24.00 mi12:45:322:40:456:426:37
6:37
-0:08
40K
24.85 mi12:51:162:46:296:425:44
6:43
+0:06
25.2M
25.20 mi12:53:412:48:546:432:25
7:01
+0:18
FINISH
26.22 mi13:00:142:55:276:426:33
6:26
-0:35

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

6:26 /mi

Average Pace

6:42 /mi

Slowest Pace

7:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:48:19

96% of race

Time at Steady Pace

7:08

4% 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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:25:2420:376:3920:37
6:39
#5276
10K
6.21 mi10:46:1241:256:4020:48
6:42
#5546
15K
9.32 mi11:06:511:02:046:4020:39
6:39
#5442
20K
12.43 mi11:27:401:22:536:4120:49
6:43
#5354
HALF
13.11 mi11:32:111:27:246:414:31
6:38
#5345
25K
15.53 mi11:48:231:43:366:4116:12
6:41
#5213
30K
18.64 mi12:09:212:04:346:4120:58
6:45
#4924
20M
20.00 mi12:18:312:13:446:429:10
6:45
#4821
21M
21.00 mi12:25:392:20:526:437:08
7:08
#4754
35K
21.75 mi12:30:292:25:426:424:50
6:28
#4678
23M
23.00 mi12:38:552:34:086:438:26
6:45
#4582
24M
24.00 mi12:45:322:40:456:426:37
6:37
#4509
40K
24.85 mi12:51:162:46:296:425:44
6:43
#4445
25.2M
25.20 mi12:53:412:48:546:432:25
7:01
#4396
FINISH
26.22 mi13:00:142:55:276:426:33
6:26
#4337
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5276489848985296(Top 18%)4905(Top 30%)4905(Top 86%)
10K6.21 mi3.10 mi5546-2705126-2285126-2285872(Top 20%)5351(Top 33%)5351(Top 93%)
15K9.32 mi3.11 mi5442+1045040+865040+865296(Top 18%)4905(Top 30%)4905(Top 86%)
20K12.43 mi3.11 mi5354+884956+844956+845178(Top 18%)4781(Top 29%)4781(Top 84%)
HALF13.11 mi0.68 mi5345+94944+124944+125400(Top 19%)4931(Top 30%)4931(Top 86%)
25K15.53 mi2.42 mi5213+1324833+1114833+1114710(Top 16%)4366(Top 27%)4366(Top 76%)
30K18.64 mi3.11 mi4924+2894583+2504583+2503997(Top 14%)3717(Top 23%)3717(Top 65%)
20M20.00 mi1.36 mi4821+1034487+964487+963780(Top 13%)3495(Top 21%)3495(Top 61%)
21M21.00 mi1.00 mi4754+674418+694418+694236(Top 15%)3798(Top 23%)3798(Top 66%)
35K21.75 mi0.75 mi4678+764348+704348+703363(Top 12%)3123(Top 19%)3123(Top 55%)
23M23.00 mi1.25 mi4582+964252+964252+963701(Top 13%)3357(Top 21%)3357(Top 59%)
24M24.00 mi1.00 mi4509+734177+754177+753852(Top 13%)3458(Top 21%)3458(Top 60%)
40K24.85 mi0.85 mi4445+644111+664111+663624(Top 12%)3236(Top 20%)3236(Top 57%)
25.2M25.20 mi0.35 mi4396+494065+464065+462711(Top 9%)2475(Top 15%)2475(Top 43%)
FINISH26.22 mi1.02 mi4337+594011+544011+543716(Top 13%)3250(Top 20%)3250(Top 57%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21
+97ft-345ft

Overall

5296

Males

4905

M18-39

4905

5K→10K

3.1 - 6.2 mi

Top 20%
×5
+79ft-138ft

Overall

5872

Males

5351

M18-39

5351

10K→15K

6.2 - 9.3 mi

Top 18%
×3
+67ft-78ft

Overall

5296

Males

4905

M18-39

4905

15K→20K

9.3 - 12.4 mi

Top 18%
×5
+106ft-86ft

Overall

5178

Males

4781

M18-39

4781

20K→HALF

12.4 - 13.1 mi

Top 19%
×2
+19ft-37ft

Overall

5400

Males

4931

M18-39

4931

HALF→25K

13.1 - 15.5 mi

Top 16%
×4
+66ft-88ft

Overall

4710

Males

4366

M18-39

4366

25K→30K

15.5 - 18.6 mi

Top 14%
×9
+181ft-148ft

Overall

3997

Males

3717

M18-39

3717

30K→20M

18.6 - 20.0 mi

Top 13%
×5
+64ft-50ft

Overall

3780

Males

3495

M18-39

3495

20M→21M

20.0 - 21.0 mi

Top 15%
×8
+106ft-24ft

Overall

4236

Males

3798

M18-39

3798

21M→35K

21.0 - 21.8 mi

Top 12%
×7
+17ft-86ft

Overall

3363

Males

3123

M18-39

3123

35K→23M

21.8 - 23.0 mi

Top 13%
×5
+23ft-63ft

Overall

3701

Males

3357

M18-39

3357

23M→24M

23.0 - 24.0 mi

Top 13%
×6
+12ft-82ft

Overall

3852

Males

3458

M18-39

3458

24M→40K

24.0 - 24.9 mi

Top 12%
×1
+6ft-20ft

Overall

3624

Males

3236

M18-39

3236

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1
+13ft-16ft

Overall

2711

Males

2475

M18-39

2475

25.2M→FINISH

25.2 - 26.2 mi

Top 13%
×2
+22ft-21ft

Overall

3716

Males

3250

M18-39

3250

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1635
Passed By
696
Net Change
+939
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5276
5K → 10K98368-270#5276#5546
10K → 15K17874+104#5546#5442
15K → 20K14658+88#5442#5354
20K → HALF2819+9#5354#5345
HALF → 25K16230+132#5345#5213
25K → 30K30314+289#5213#4924
30K → 20M11613+103#4924#4821
20M → 21M9326+67#4821#4754
21M → 35K815+76#4754#4678
35K → 23M12832+96#4678#4582
23M → 24M9522+73#4582#4509
24M → 40K7713+64#4509#4445
40K → 25.2M512+49#4445#4396
25.2M → FINISH7920+59#4396#4337
TOTALS1635696+939
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing