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BOSTON MARATHON 2024

Michael Loszewski

Bib: 13431•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M50-54)
#0 / 1935
Race Day Weather
55°/45°F
scattered 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
7:41/mi
23:51
↑ 97↓ 3451.5%
10K· 6.21 mi
7:39/mi
47:38
↑ 79↓ 1380.4%
15K· 9.32 mi
7:47/mi
1:11:48
↑ 67↓ 78
20K· 12.43 mi
8:05/mi
1:36:55
↑ 106↓ 860.1%
Half· 13.11 mi
8:08/mi
1:42:28
↑ 19↓ 370.5%
25K· 15.53 mi
8:34/mi
2:03:15
↑ 66↓ 880.2%
30K· 18.64 mi
9:40/mi
2:33:17
↑ 181↓ 1480.2%
20M
9:49/mi
2:46:37
↑ 64↓ 500.2%
21M
10:30/mi
2:57:07
↑ 106↓ 241.6%
35K· 21.75 mi
11:14/mi
3:05:31
↑ 17↓ 861.7%
23M
10:25/mi
3:18:34
↑ 23↓ 630.6%
24M
10:05/mi
3:28:39
↓ 821.3%
40K· 24.85 mi
10:14/mi
3:37:24
↓ 200.3%
25.2M
11:10/mi
3:41:15
↑ 13↓ 160.2%
Finish· 26.22 mi
9:36/mi
3:51:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:28
Pace7:49 /mi
2nd Half
Distance13.11 mi
Time2:08:34
Pace9:48 /mi
📊Positive Split: 25.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:4923:517:4123:51
7:41
-
10K
6.21 mi11:18:3647:387:4023:47
7:39
-0:02
15K
9.32 mi11:42:461:11:487:4224:10
7:47
+0:08
20K
12.43 mi12:07:531:36:557:4825:07
8:05
+0:18
Half
13.11 mi12:13:261:42:287:495:33
8:08
+0:03
25K
15.53 mi12:34:132:03:157:5620:47
8:34
+0:26
30K
18.64 mi13:04:152:33:178:1330:02
9:40
+1:06
20M
20.00 mi13:17:352:46:378:2013:20
9:49
+0:09
21M
21.00 mi13:28:052:57:078:2610:30
10:30
+0:41
35K
21.75 mi13:36:293:05:318:328:24
11:14
+0:44
23M
23.00 mi13:49:323:18:348:3813:03
10:25
-0:49
24M
24.00 mi13:59:373:28:398:4210:05
10:05
-0:20
40K
24.85 mi14:08:223:37:248:458:45
10:14
+0:09
25.2M
25.20 mi14:12:133:41:158:473:51
11:10
+0:56
Finish
26.22 mi14:22:003:51:028:499:47
9:36
-1:34

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

7:39 /mi

Average Pace

8:49 /mi

Slowest Pace

11:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:15

53% of race

Time at Steady Pace

1:11:59

31% of race

Time at Slower Pace

35:48

15% of race

Average Pace: 8:49 /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 mi10:54:4923:517:4123:51
7:41
#12124
10K
6.21 mi11:18:3647:387:4023:47
7:39
#11780
15K
9.32 mi11:42:461:11:487:4224:10
7:47
#11771
20K
12.43 mi12:07:531:36:557:4825:07
8:05
#11884
Half
13.11 mi12:13:261:42:287:495:33
8:08
#11990
25K
15.53 mi12:34:132:03:157:5620:47
8:34
#12228
30K
18.64 mi13:04:152:33:178:1330:02
9:40
#13115
20M
20.00 mi13:17:352:46:378:2013:20
9:49
#13330
21M
21.00 mi13:28:052:57:078:2610:30
10:30
#13432
35K
21.75 mi13:36:293:05:318:328:24
11:14
#13872
23M
23.00 mi13:49:323:18:348:3813:03
10:25
#14147
24M
24.00 mi13:59:373:28:398:4210:05
10:05
#14293
40K
24.85 mi14:08:223:37:248:458:45
10:14
#14375
25.2M
25.20 mi14:12:133:41:158:473:51
11:10
#14384
Finish
26.22 mi14:22:003:51:028:499:47
9:36
#14475
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi121248896889611757(Top 46%)8630(Top 59%)8630(Top 446%)
10K6.21 mi3.10 mi11780+3448711+1858711+18511502(Top 45%)8550(Top 59%)8550(Top 442%)
15K9.32 mi3.11 mi11771+98666+458666+4511757(Top 46%)8630(Top 59%)8630(Top 446%)
20K12.43 mi3.11 mi11884-1138709-438709-4312421(Top 49%)8855(Top 61%)8855(Top 458%)
Half13.11 mi0.68 mi11990-1068744-358744-3513583(Top 53%)9319(Top 64%)9319(Top 482%)
25K15.53 mi2.42 mi12228-2388810-668810-6613431(Top 53%)9121(Top 63%)9121(Top 471%)
30K18.64 mi3.11 mi13115-8879104-2949104-29416105(Top 63%)10050(Top 69%)10050(Top 519%)
20M20.00 mi1.36 mi13330-2159128-249128-2415784(Top 62%)9656(Top 66%)9656(Top 499%)
21M21.00 mi1.00 mi13432-1029120+89120+814811(Top 58%)9047(Top 62%)9047(Top 468%)
35K21.75 mi0.75 mi13872-4409279-1599279-15920267(Top 79%)11734(Top 80%)11734(Top 606%)
23M23.00 mi1.25 mi14147-2759353-749353-7416811(Top 66%)9958(Top 68%)9958(Top 515%)
24M24.00 mi1.00 mi14293-1469366-139366-1316575(Top 65%)9810(Top 67%)9810(Top 507%)
40K24.85 mi0.85 mi14375-829360+69360+615799(Top 62%)9365(Top 64%)9365(Top 484%)
25.2M25.20 mi0.35 mi14384-99347+139347+1314990(Top 59%)8927(Top 61%)8927(Top 461%)
Finish26.22 mi1.02 mi14475-919365-189365-1816907(Top 66%)9902(Top 68%)9902(Top 512%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

11757

Males

8630

M50-54

8630

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

11502

Males

8550

M50-54

8550

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

11757

Males

8630

M50-54

8630

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

12421

Males

8855

M50-54

8855

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

13583

Males

9319

M50-54

9319

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

13431

Males

9121

M50-54

9121

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

16105

Males

10050

M50-54

10050

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

15784

Males

9656

M50-54

9656

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

14811

Males

9047

M50-54

9047

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

20267

Males

11734

M50-54

11734

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

16811

Males

9958

M50-54

9958

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

16575

Males

9810

M50-54

9810

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

15799

Males

9365

M50-54

9365

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

14990

Males

8927

M50-54

8927

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

16907

Males

9902

M50-54

9902

Passing Analysis

Category:
Athletes Passed
1663
Passed By
4014
Net Change
-2351
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12124
5K → 10K485141+344#12124#11780
10K → 15K240231+9#11780#11771
15K → 20K193306-113#11771#11884
20K → Half20126-106#11884#11990
Half → 25K165403-238#11990#12228
25K → 30K92979-887#12228#13115
30K → 20M91306-215#13115#13330
20M → 21M102204-102#13330#13432
21M → 35K19459-440#13432#13872
35K → 23M58333-275#13872#14147
23M → 24M65211-146#14147#14293
24M → 40K52134-82#14293#14375
40K → 25.2M3140-9#14375#14384
25.2M → Finish50141-91#14384#14475
TOTALS16634014-2351
📊

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