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BOSTON MARATHON 2023

Masao Tsujishita

Bib: 23524•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M65-69)
#0 / 549
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
9:10/mi
28:28
↑ 97↓ 3451.5%
10K· 6.21 mi
9:17/mi
57:18
↑ 79↓ 1380.4%
15K· 9.32 mi
9:15/mi
1:26:01
↑ 67↓ 78
20K· 12.43 mi
9:39/mi
1:56:00
↑ 106↓ 860.1%
Half· 13.11 mi
9:37/mi
2:02:34
↑ 19↓ 370.5%
25K· 15.53 mi
10:10/mi
2:27:13
↑ 66↓ 880.2%
30K· 18.64 mi
10:45/mi
3:00:36
↑ 181↓ 1480.2%
20M
10:52/mi
3:15:22
↑ 64↓ 500.2%
21M
13:33/mi
3:28:55
↑ 106↓ 241.6%
35K· 21.75 mi
10:48/mi
3:37:00
↑ 17↓ 861.7%
23M
11:16/mi
3:51:06
↑ 23↓ 630.6%
24M
11:18/mi
4:02:24
↓ 821.3%
40K· 24.85 mi
11:55/mi
4:12:35
↓ 200.3%
25.2M
13:23/mi
4:17:12
↑ 13↓ 160.2%
Finish· 26.22 mi
12:55/mi
4:30:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:34
Pace9:21 /mi
2nd Half
Distance13.11 mi
Time2:27:48
Pace11:16 /mi
📊Positive Split: 20.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:0028:289:1028:28
9:10
-
10K
6.21 mi11:52:5057:189:1328:50
9:17
+0:07
15K
9.32 mi12:21:331:26:019:1428:43
9:15
-0:02
20K
12.43 mi12:51:321:56:009:2029:59
9:39
+0:24
Half
13.11 mi12:58:062:02:349:216:34
9:37
-0:02
25K
15.53 mi13:22:452:27:139:2924:39
10:10
+0:33
30K
18.64 mi13:56:083:00:369:4133:23
10:45
+0:35
20M
20.00 mi14:10:543:15:229:4614:46
10:52
+0:07
21M
21.00 mi14:24:273:28:559:5713:33
13:33
+2:41
35K
21.75 mi14:32:323:37:009:598:05
10:48
-2:45
23M
23.00 mi14:46:383:51:0610:0314:06
11:16
+0:28
24M
24.00 mi14:57:564:02:2410:0611:18
11:18
+0:02
40K
24.85 mi15:08:074:12:3510:1010:11
11:55
+0:37
25.2M
25.20 mi15:12:444:17:1210:124:37
13:23
+1:28
Finish
26.22 mi15:25:544:30:2210:1913:10
12:55
-0:28

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

9:10 /mi

Average Pace

10:19 /mi

Slowest Pace

13:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:34

45% of race

Time at Steady Pace

1:46:17

39% of race

Time at Slower Pace

41:31

15% of race

Average Pace: 10:19 /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 mi11:24:0028:289:1028:28
9:10
#21087
10K
6.21 mi11:52:5057:189:1328:50
9:17
#21479
15K
9.32 mi12:21:331:26:019:1428:43
9:15
#21462
20K
12.43 mi12:51:321:56:009:2029:59
9:39
#21623
Half
13.11 mi12:58:062:02:349:216:34
9:37
#21663
25K
15.53 mi13:22:452:27:139:2924:39
10:10
#21824
30K
18.64 mi13:56:083:00:369:4133:23
10:45
#22024
20M
20.00 mi14:10:543:15:229:4614:46
10:52
#22077
21M
21.00 mi14:24:273:28:559:5713:33
13:33
#22305
35K
21.75 mi14:32:323:37:009:598:05
10:48
#22323
23M
23.00 mi14:46:383:51:0610:0314:06
11:16
#22359
24M
24.00 mi14:57:564:02:2410:0611:18
11:18
#22430
40K
24.85 mi15:08:074:12:3510:1010:11
11:55
#22490
25.2M
25.20 mi15:12:444:17:1210:124:37
13:23
#22533
Finish
26.22 mi15:25:544:30:2210:1913:10
12:55
#22758
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi21087126511265121449(Top 81%)12953(Top 85%)12953(Top 2359%)
10K6.21 mi3.10 mi21479-39212887-23612887-23621864(Top 82%)13096(Top 86%)13096(Top 2385%)
15K9.32 mi3.11 mi21462+1712908-2112908-2121449(Top 81%)12953(Top 85%)12953(Top 2359%)
20K12.43 mi3.11 mi21623-16112981-7312981-7322004(Top 83%)13184(Top 87%)13184(Top 2401%)
Half13.11 mi0.68 mi21663-4012997-1612997-1622443(Top 84%)13384(Top 88%)13384(Top 2438%)
25K15.53 mi2.42 mi21824-16113081-8413081-8422535(Top 85%)13378(Top 88%)13378(Top 2437%)
30K18.64 mi3.11 mi22024-20013157-7613157-7622689(Top 85%)13374(Top 88%)13374(Top 2436%)
20M20.00 mi1.36 mi22077-5313167-1013167-1022448(Top 84%)13201(Top 87%)13201(Top 2405%)
21M21.00 mi1.00 mi22305-22813258-9113258-9124633(Top 93%)14191(Top 94%)14191(Top 2585%)
35K21.75 mi0.75 mi22323-1813250+813250+822935(Top 86%)13351(Top 88%)13351(Top 2432%)
23M23.00 mi1.25 mi22359-3613263-1313263-1322830(Top 86%)13306(Top 88%)13306(Top 2424%)
24M24.00 mi1.00 mi22430-7113285-2213285-2223577(Top 89%)13621(Top 90%)13621(Top 2481%)
40K24.85 mi0.85 mi22490-6013307-2213307-2223772(Top 89%)13679(Top 90%)13679(Top 2492%)
25.2M25.20 mi0.35 mi22533-4313317-1013317-1024397(Top 92%)13996(Top 92%)13996(Top 2549%)
Finish26.22 mi1.02 mi22758-22513418-10113418-10125934(Top 97%)14774(Top 97%)14774(Top 2691%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

21449

Males

12953

M65-69

12953

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

21864

Males

13096

M65-69

13096

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

21449

Males

12953

M65-69

12953

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

22004

Males

13184

M65-69

13184

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

22443

Males

13384

M65-69

13384

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

22535

Males

13378

M65-69

13378

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

22689

Males

13374

M65-69

13374

30K→20M

18.6 - 20.0 mi

Top 84%
×5story building
+64ft-50ft

Overall

22448

Males

13201

M65-69

13201

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

24633

Males

14191

M65-69

14191

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22935

Males

13351

M65-69

13351

35K→23M

21.8 - 23.0 mi

Top 86%
×5story building
+23ft-63ft

Overall

22830

Males

13306

M65-69

13306

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

23577

Males

13621

M65-69

13621

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

23772

Males

13679

M65-69

13679

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24397

Males

13996

M65-69

13996

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

25934

Males

14774

M65-69

14774

Passing Analysis

Category:
Athletes Passed
694
Passed By
2365
Net Change
-1671
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21087
5K → 10K128520-392#21087#21479
10K → 15K173156+17#21479#21462
15K → 20K69230-161#21462#21623
20K → Half1353-40#21623#21663
Half → 25K54215-161#21663#21824
25K → 30K92292-200#21824#22024
30K → 20M4598-53#22024#22077
20M → 21M10238-228#22077#22305
21M → 35K2644-18#22305#22323
35K → 23M4581-36#22323#22359
23M → 24M1586-71#22359#22430
24M → 40K1373-60#22430#22490
40K → 25.2M649-43#22490#22533
25.2M → Finish5230-225#22533#22758
TOTALS6942365-1671
📊

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