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BOSTON MARATHON 2023

Masanobu Shigenari

Bib: 16924•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 42%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 47%
Division (M55-59)
#0 / 1422
Top 31%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:07
Rank: #9142
Start → 5K
7:26/mi
23:07 split
10K· 6.21 mi
46:21
Rank: #9651 (-509)
5K → 10K
7:29/mi
23:14 split
15K· 9.32 mi
1:09:56
Rank: #10090 (-439)
10K → 15K
7:35/mi
23:35 split
20K· 12.43 mi
1:34:10
Rank: #10488 (-398)
15K → 20K
7:48/mi
24:14 split
Half· 13.11 mi
1:39:29
Rank: #10620 (-132)
20K → Half
7:48/mi
5:19 split
25K· 15.53 mi
1:58:46
Rank: #10865 (-245)
Half → 25K
7:57/mi
19:17 split
30K· 18.64 mi
2:24:17
Rank: #11082 (-217)
25K → 30K
8:13/mi
25:31 split
20M
2:35:37
Rank: #11195 (-113)
30K → 20M
8:20/mi
11:20 split
21M
2:44:29
Rank: #11261 (-66)
20M → 21M
8:52/mi
8:52 split
35K· 21.75 mi
2:50:23
Rank: #11258 (+3)
21M → 35K
7:53/mi
5:54 split
23M
3:00:48
Rank: #11304 (-46)
35K → 23M
8:19/mi
10:25 split
24M
3:08:48
Rank: #11296 (+8)
23M → 24M
8:00/mi
8:00 split
40K· 24.85 mi
3:15:52
Rank: #11302 (-6)
24M → 40K
8:16/mi
7:04 split
25.2M
3:18:53
Rank: #11294 (+8)
40K → 25.2M
8:45/mi
3:01 split
Finish· 26.22 mi
3:27:03
Rank: #11308 (-14)
25.2M → Finish
8:01/mi
8:10 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:29
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:47:34
Pace8:12 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:1523:077:2623:07
7:26
-
10K
6.21 mi11:36:2946:217:2823:14
7:29
+0:03
15K
9.32 mi12:00:041:09:567:3023:35
7:35
+0:06
20K
12.43 mi12:24:181:34:107:3524:14
7:48
+0:13
Half
13.11 mi12:29:371:39:297:355:19
7:48
0:00
25K
15.53 mi12:48:541:58:467:3919:17
7:57
+0:09
30K
18.64 mi13:14:252:24:177:4425:31
8:13
+0:16
20M
20.00 mi13:25:452:35:377:4711:20
8:20
+0:07
21M
21.00 mi13:34:372:44:297:508:52
8:52
+0:32
35K
21.75 mi13:40:312:50:237:505:54
7:53
-0:59
23M
23.00 mi13:50:563:00:487:5210:25
8:19
+0:26
24M
24.00 mi13:58:563:08:487:528:00
8:00
-0:19
40K
24.85 mi14:06:003:15:527:537:04
8:16
+0:16
25.2M
25.20 mi14:09:013:18:537:543:01
8:45
+0:29
Finish
26.22 mi14:17:113:27:037:548:10
8:01
-0:44

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

7:26 /mi

Average Pace

7:54 /mi

Slowest Pace

8:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:50

68% of race

Time at Steady Pace

57:21

28% of race

Time at Slower Pace

8:52

4% of race

Average Pace: 7:54 /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 mi11:13:1523:077:2623:07
7:26
#9142
10K
6.21 mi11:36:2946:217:2823:14
7:29
#9651
15K
9.32 mi12:00:041:09:567:3023:35
7:35
#10090
20K
12.43 mi12:24:181:34:107:3524:14
7:48
#10488
Half
13.11 mi12:29:371:39:297:355:19
7:48
#10620
25K
15.53 mi12:48:541:58:467:3919:17
7:57
#10865
30K
18.64 mi13:14:252:24:177:4425:31
8:13
#11082
20M
20.00 mi13:25:452:35:377:4711:20
8:20
#11195
21M
21.00 mi13:34:372:44:297:508:52
8:52
#11261
35K
21.75 mi13:40:312:50:237:505:54
7:53
#11258
23M
23.00 mi13:50:563:00:487:5210:25
8:19
#11304
24M
24.00 mi13:58:563:08:487:528:00
8:00
#11296
40K
24.85 mi14:06:003:15:527:537:04
8:16
#11302
25.2M
25.20 mi14:09:013:18:537:543:01
8:45
#11294
Finish
26.22 mi14:17:113:27:037:548:10
8:01
#11308
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi91427688768810929(Top 41%)8618(Top 57%)8618(Top 606%)
10K6.21 mi3.10 mi9651-5097956-2687956-26810277(Top 39%)8321(Top 55%)8321(Top 585%)
15K9.32 mi3.11 mi10090-4398219-2638219-26310929(Top 41%)8618(Top 57%)8618(Top 606%)
20K12.43 mi3.11 mi10488-3988408-1898408-18911724(Top 44%)8895(Top 59%)8895(Top 626%)
Half13.11 mi0.68 mi10620-1328471-638471-6312787(Top 48%)9380(Top 62%)9380(Top 660%)
25K15.53 mi2.42 mi10865-2458571-1008571-10012313(Top 46%)9032(Top 60%)9032(Top 635%)
30K18.64 mi3.11 mi11082-2178616-458616-4512416(Top 47%)8978(Top 59%)8978(Top 631%)
20M20.00 mi1.36 mi11195-1138634-188634-1812594(Top 47%)8936(Top 59%)8936(Top 628%)
21M21.00 mi1.00 mi11261-668644-108644-1012615(Top 47%)8853(Top 58%)8853(Top 623%)
35K21.75 mi0.75 mi11258+38633+118633+1111267(Top 42%)8249(Top 54%)8249(Top 580%)
23M23.00 mi1.25 mi11304-468628+58628+512012(Top 45%)8472(Top 56%)8472(Top 596%)
24M24.00 mi1.00 mi11296+88605+238605+2311220(Top 42%)8004(Top 53%)8004(Top 563%)
40K24.85 mi0.85 mi11302-68583+228583+2211763(Top 44%)8204(Top 54%)8204(Top 577%)
25.2M25.20 mi0.35 mi11294+88564+198564+1910962(Top 41%)7773(Top 51%)7773(Top 547%)
Finish26.22 mi1.02 mi11308-148551+138551+1312202(Top 46%)8377(Top 55%)8377(Top 589%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

10929

Males

8618

M55-59

8618

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10277

Males

8321

M55-59

8321

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

10929

Males

8618

M55-59

8618

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

11724

Males

8895

M55-59

8895

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

12787

Males

9380

M55-59

9380

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

12313

Males

9032

M55-59

9032

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

12416

Males

8978

M55-59

8978

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

12594

Males

8936

M55-59

8936

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

12615

Males

8853

M55-59

8853

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

11267

Males

8249

M55-59

8249

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12012

Males

8472

M55-59

8472

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11220

Males

8004

M55-59

8004

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11763

Males

8204

M55-59

8204

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10962

Males

7773

M55-59

7773

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12202

Males

8377

M55-59

8377

Passing Analysis

Category:
Athletes Passed
920
Passed By
3084
Net Change
-2166
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9142
5K → 10K123632-509#9142#9651
10K → 15K64501-439#9651#10090
15K → 20K57455-398#10090#10488
20K → Half7139-132#10488#10620
Half → 25K62307-245#10620#10865
25K → 30K125342-217#10865#11082
30K → 20M60173-113#11082#11195
20M → 21M65131-66#11195#11261
21M → 35K4441+3#11261#11258
35K → 23M79125-46#11258#11304
23M → 24M6759+8#11304#11296
24M → 40K6369-6#11296#11302
40K → 25.2M3931+8#11302#11294
25.2M → Finish6579-14#11294#11308
TOTALS9203084-2166
📊

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