Boston Marathon logo
BOSTON MARATHON 2024

Osamu Sewatari

Bib: 13073•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 49%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M55-59)
#0 / 1529
Top 42%
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
7:46/mi
24:09
↑ 97↓ 3451.5%
10K· 6.21 mi
7:54/mi
48:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:55/mi
1:13:17
↑ 67↓ 78
20K· 12.43 mi
8:05/mi
1:38:25
↑ 106↓ 860.1%
Half· 13.11 mi
8:02/mi
1:43:54
↑ 19↓ 370.5%
25K· 15.53 mi
8:19/mi
2:04:03
↑ 66↓ 880.2%
30K· 18.64 mi
8:46/mi
2:31:16
↑ 181↓ 1480.2%
20M
9:05/mi
2:43:36
↑ 64↓ 500.2%
21M
9:49/mi
2:53:25
↑ 106↓ 241.6%
35K· 21.75 mi
9:01/mi
3:00:10
↑ 17↓ 861.7%
23M
9:29/mi
3:12:03
↑ 23↓ 630.6%
24M
9:16/mi
3:21:19
↓ 821.3%
40K· 24.85 mi
9:37/mi
3:29:32
↓ 200.3%
25.2M
10:29/mi
3:33:09
↑ 13↓ 160.2%
Finish· 26.22 mi
9:00/mi
3:42:19
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:54
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:58:25
Pace9:02 /mi
📊Positive Split: 14.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1624:097:4624:09
7:46
-
10K
6.21 mi11:18:4948:427:5024:33
7:54
+0:08
15K
9.32 mi11:43:241:13:177:5224:35
7:55
+0:01
20K
12.43 mi12:08:321:38:257:5525:08
8:05
+0:10
Half
13.11 mi12:14:011:43:547:565:29
8:02
-0:03
25K
15.53 mi12:34:102:04:037:5920:09
8:19
+0:17
30K
18.64 mi13:01:232:31:168:0727:13
8:46
+0:27
20M
20.00 mi13:13:432:43:368:1112:20
9:05
+0:19
21M
21.00 mi13:23:322:53:258:159:49
9:49
+0:44
35K
21.75 mi13:30:173:00:108:176:45
9:01
-0:48
23M
23.00 mi13:42:103:12:038:2111:53
9:29
+0:28
24M
24.00 mi13:51:263:21:198:239:16
9:16
-0:13
40K
24.85 mi13:59:393:29:328:268:13
9:37
+0:21
25.2M
25.20 mi14:03:163:33:098:283:37
10:29
+0:52
Finish
26.22 mi14:12:263:42:198:299:10
9:00
-1:29

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

7:46 /mi

Average Pace

8:29 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:03

56% of race

Time at Steady Pace

1:04:44

29% of race

Time at Slower Pace

33:32

15% of race

Average Pace: 8:29 /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 mi10:54:1624:097:4624:09
7:46
#12883
10K
6.21 mi11:18:4948:427:5024:33
7:54
#13123
15K
9.32 mi11:43:241:13:177:5224:35
7:55
#12995
20K
12.43 mi12:08:321:38:257:5525:08
8:05
#12777
Half
13.11 mi12:14:011:43:547:565:29
8:02
#12798
25K
15.53 mi12:34:102:04:037:5920:09
8:19
#12576
30K
18.64 mi13:01:232:31:168:0727:13
8:46
#12438
20M
20.00 mi13:13:432:43:368:1112:20
9:05
#12392
21M
21.00 mi13:23:322:53:258:159:49
9:49
#12342
35K
21.75 mi13:30:173:00:108:176:45
9:01
#12376
23M
23.00 mi13:42:103:12:038:2111:53
9:29
#12409
24M
24.00 mi13:51:263:21:198:239:16
9:16
#12426
40K
24.85 mi13:59:393:29:328:268:13
9:37
#12442
25.2M
25.20 mi14:03:163:33:098:283:37
10:29
#12435
Finish
26.22 mi14:12:263:42:198:299:10
9:00
#12494
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi128839190919012773(Top 50%)9078(Top 62%)9078(Top 594%)
10K6.21 mi3.10 mi13123-2409293-1039293-10313445(Top 53%)9393(Top 64%)9393(Top 614%)
15K9.32 mi3.11 mi12995+1289216+779216+7712773(Top 50%)9078(Top 62%)9078(Top 594%)
20K12.43 mi3.11 mi12777+2189108+1089108+10812446(Top 49%)8867(Top 61%)8867(Top 580%)
Half13.11 mi0.68 mi12798-219100+89100+812966(Top 51%)9065(Top 62%)9065(Top 593%)
25K15.53 mi2.42 mi12576+2228967+1338967+13312038(Top 47%)8472(Top 58%)8472(Top 554%)
30K18.64 mi3.11 mi12438+1388817+1508817+15011989(Top 47%)8233(Top 56%)8233(Top 538%)
20M20.00 mi1.36 mi12392+468747+708747+7012498(Top 49%)8184(Top 56%)8184(Top 535%)
21M21.00 mi1.00 mi12342+508657+908657+9012187(Top 48%)7802(Top 54%)7802(Top 510%)
35K21.75 mi0.75 mi12376-348625+328625+3213390(Top 52%)8352(Top 57%)8352(Top 546%)
23M23.00 mi1.25 mi12409-338584+418584+4113462(Top 53%)8291(Top 57%)8291(Top 542%)
24M24.00 mi1.00 mi12426-178546+388546+3813373(Top 52%)8232(Top 56%)8232(Top 538%)
40K24.85 mi0.85 mi12442-168506+408506+4013521(Top 53%)8189(Top 56%)8189(Top 536%)
25.2M25.20 mi0.35 mi12435+78477+298477+2912733(Top 50%)7736(Top 53%)7736(Top 506%)
Finish26.22 mi1.02 mi12494-598464+138464+1314162(Top 55%)8567(Top 59%)8567(Top 560%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

12773

Males

9078

M55-59

9078

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

13445

Males

9393

M55-59

9393

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

12773

Males

9078

M55-59

9078

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

12446

Males

8867

M55-59

8867

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

12966

Males

9065

M55-59

9065

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

12038

Males

8472

M55-59

8472

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

11989

Males

8233

M55-59

8233

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

12498

Males

8184

M55-59

8184

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

12187

Males

7802

M55-59

7802

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

13390

Males

8352

M55-59

8352

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

13462

Males

8291

M55-59

8291

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

13373

Males

8232

M55-59

8232

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

13521

Males

8189

M55-59

8189

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

12733

Males

7736

M55-59

7736

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

14162

Males

8567

M55-59

8567

Passing Analysis

Category:
Athletes Passed
2383
Passed By
1994
Net Change
+389
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12883
5K → 10K200440-240#12883#13123
10K → 15K273145+128#13123#12995
15K → 20K379161+218#12995#12777
20K → Half3960-21#12777#12798
Half → 25K345123+222#12798#12576
25K → 30K355217+138#12576#12438
30K → 20M163117+46#12438#12392
20M → 21M150100+50#12392#12342
21M → 35K66100-34#12342#12376
35K → 23M122155-33#12376#12409
23M → 24M95112-17#12409#12426
24M → 40K87103-16#12426#12442
40K → 25.2M4740+7#12442#12435
25.2M → Finish62121-59#12435#12494
TOTALS23831994+389
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing