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BOSTON MARATHON 2023

Toshio Yokoyama

Bib: 11582•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 13%
Gender (Male)
#0 / 15176
Top 22%
Masters (Masters Men)
#0 / 9891
Top 9%
Division (M45-49)
#0 / 2252
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
6:39/mi
20:40
↑ 97↓ 3451.5%
10K· 6.21 mi
6:26/mi
40:38
↑ 79↓ 1380.4%
15K· 9.32 mi
6:32/mi
1:00:55
↑ 67↓ 78
20K· 12.43 mi
6:41/mi
1:21:42
↑ 106↓ 860.1%
Half· 13.11 mi
6:34/mi
1:26:11
↑ 19↓ 370.5%
25K· 15.53 mi
6:45/mi
1:42:34
↑ 66↓ 880.2%
30K· 18.64 mi
7:03/mi
2:04:28
↑ 181↓ 1480.2%
20M
7:07/mi
2:14:08
↑ 64↓ 500.2%
21M
7:29/mi
2:21:37
↑ 106↓ 241.6%
35K· 21.75 mi
6:45/mi
2:26:40
↑ 17↓ 861.7%
23M
7:03/mi
2:35:29
↑ 23↓ 630.6%
24M
6:51/mi
2:42:20
↓ 821.3%
40K· 24.85 mi
7:07/mi
2:48:25
↓ 200.3%
25.2M
7:35/mi
2:51:02
↑ 13↓ 160.2%
Finish· 26.22 mi
6:55/mi
2:58:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:11
Pace6:34 /mi
2nd Half
Distance13.11 mi
Time1:31:54
Pace7:01 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:2320:406:3920:40
6:39
-
10K
6.21 mi11:07:2140:386:3219:58
6:26
-0:13
15K
9.32 mi11:27:381:00:556:3220:17
6:32
+0:06
20K
12.43 mi11:48:251:21:426:3420:47
6:41
+0:09
Half
13.11 mi11:52:541:26:116:344:29
6:34
-0:07
25K
15.53 mi12:09:171:42:346:3616:23
6:45
+0:11
30K
18.64 mi12:31:112:04:286:4121:54
7:03
+0:18
20M
20.00 mi12:40:512:14:086:429:40
7:07
+0:04
21M
21.00 mi12:48:202:21:376:457:29
7:29
+0:22
35K
21.75 mi12:53:232:26:406:455:03
6:45
-0:44
23M
23.00 mi13:02:122:35:296:468:49
7:03
+0:18
24M
24.00 mi13:09:032:42:206:466:51
6:51
-0:12
40K
24.85 mi13:15:082:48:256:476:05
7:07
+0:16
25.2M
25.20 mi13:17:452:51:026:472:37
7:35
+0:28
Finish
26.22 mi13:24:482:58:056:487:03
6:55
-0:40

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

6:26 /mi

Average Pace

6:48 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:14

85% of race

Time at Steady Pace

25:51

15% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:48 /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 mi10:47:2320:406:3920:40
6:39
#3248
10K
6.21 mi11:07:2140:386:3219:58
6:26
#2733
15K
9.32 mi11:27:381:00:556:3220:17
6:32
#2735
20K
12.43 mi11:48:251:21:426:3420:47
6:41
#2895
Half
13.11 mi11:52:541:26:116:344:29
6:34
#2910
25K
15.53 mi12:09:171:42:346:3616:23
6:45
#3020
30K
18.64 mi12:31:112:04:286:4121:54
7:03
#3260
20M
20.00 mi12:40:512:14:086:429:40
7:07
#3336
21M
21.00 mi12:48:202:21:376:457:29
7:29
#3392
35K
21.75 mi12:53:232:26:406:455:03
6:45
#3392
23M
23.00 mi13:02:122:35:296:468:49
7:03
#3419
24M
24.00 mi13:09:032:42:206:466:51
6:51
#3437
40K
24.85 mi13:15:082:48:256:476:05
7:07
#3465
25.2M
25.20 mi13:17:452:51:026:472:37
7:35
#3466
Finish
26.22 mi13:24:482:58:056:487:03
6:55
#3516
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3248306730672820(Top 11%)2696(Top 18%)2696(Top 120%)
10K6.21 mi3.10 mi2733+5152608+4592608+4592380(Top 9%)2280(Top 15%)2280(Top 101%)
15K9.32 mi3.11 mi2735-22611-32611-32820(Top 11%)2696(Top 18%)2696(Top 120%)
20K12.43 mi3.11 mi2895-1602765-1542765-1543490(Top 13%)3304(Top 22%)3304(Top 147%)
Half13.11 mi0.68 mi2910-152778-132778-133247(Top 12%)3097(Top 20%)3097(Top 138%)
25K15.53 mi2.42 mi3020-1102883-1052883-1053795(Top 14%)3569(Top 24%)3569(Top 158%)
30K18.64 mi3.11 mi3260-2403101-2183101-2184648(Top 17%)4293(Top 28%)4293(Top 191%)
20M20.00 mi1.36 mi3336-763161-603161-604662(Top 18%)4267(Top 28%)4267(Top 189%)
21M21.00 mi1.00 mi3392-563213-523213-524470(Top 17%)4072(Top 27%)4072(Top 181%)
35K21.75 mi0.75 mi33923211+23211+23848(Top 14%)3542(Top 23%)3542(Top 157%)
23M23.00 mi1.25 mi3419-273235-243235-243972(Top 15%)3653(Top 24%)3653(Top 162%)
24M24.00 mi1.00 mi3437-183248-133248-133919(Top 15%)3578(Top 24%)3578(Top 159%)
40K24.85 mi0.85 mi3465-283273-253273-254421(Top 17%)3922(Top 26%)3922(Top 174%)
25.2M25.20 mi0.35 mi3466-13274-13274-14260(Top 16%)3730(Top 25%)3730(Top 166%)
Finish26.22 mi1.02 mi3516-503311-373311-374714(Top 18%)4069(Top 27%)4069(Top 181%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21story building
+97ft-345ft

Overall

2820

Males

2696

M45-49

2696

5K→10K

3.1 - 6.2 mi

Top 9%
×5story building
+79ft-138ft

Overall

2380

Males

2280

M45-49

2280

10K→15K

6.2 - 9.3 mi

Top 11%
×3story building
+67ft-78ft

Overall

2820

Males

2696

M45-49

2696

15K→20K

9.3 - 12.4 mi

Top 13%
×5story building
+106ft-86ft

Overall

3490

Males

3304

M45-49

3304

20K→Half

12.4 - 13.1 mi

Top 12%
×2story building
+19ft-37ft

Overall

3247

Males

3097

M45-49

3097

Half→25K

13.1 - 15.5 mi

Top 14%
×4story building
+66ft-88ft

Overall

3795

Males

3569

M45-49

3569

25K→30K

15.5 - 18.6 mi

Top 17%
×9story building
+181ft-148ft

Overall

4648

Males

4293

M45-49

4293

30K→20M

18.6 - 20.0 mi

Top 18%
×5story building
+64ft-50ft

Overall

4662

Males

4267

M45-49

4267

20M→21M

20.0 - 21.0 mi

Top 17%
×8story building
+106ft-24ft

Overall

4470

Males

4072

M45-49

4072

21M→35K

21.0 - 21.8 mi

Top 14%
×7story building
+17ft-86ft

Overall

3848

Males

3542

M45-49

3542

35K→23M

21.8 - 23.0 mi

Top 15%
×5story building
+23ft-63ft

Overall

3972

Males

3653

M45-49

3653

23M→24M

23.0 - 24.0 mi

Top 15%
×6story building
+12ft-82ft

Overall

3919

Males

3578

M45-49

3578

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4421

Males

3922

M45-49

3922

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4260

Males

3730

M45-49

3730

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2story building
+22ft-21ft

Overall

4714

Males

4069

M45-49

4069

Passing Analysis

Category:
Athletes Passed
991
Passed By
1259
Net Change
-268
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3248
5K → 10K53318+515#3248#2733
10K → 15K7779-2#2733#2735
15K → 20K33193-160#2735#2895
20K → Half1025-15#2895#2910
Half → 25K30140-110#2910#3020
25K → 30K35275-240#3020#3260
30K → 20M42118-76#3260#3336
20M → 21M3591-56#3336#3392
21M → 35K35350#3392#3392
35K → 23M4875-27#3392#3419
23M → 24M3452-18#3419#3437
24M → 40K3159-28#3437#3465
40K → 25.2M1415-1#3465#3466
25.2M → Finish3484-50#3466#3516
TOTALS9911259-268
📊

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