Boston Marathon logo
BOSTON MARATHON 2023

Tsunetaka Matsui

Bib: 29813•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
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
10:13/mi
31:46
↑ 97↓ 3451.5%
10K· 6.21 mi
9:55/mi
1:02:36
↑ 79↓ 1380.4%
15K· 9.32 mi
10:30/mi
1:35:14
↑ 67↓ 78
20K· 12.43 mi
10:42/mi
2:08:30
↑ 106↓ 860.1%
Half· 13.11 mi
10:39/mi
2:15:46
↑ 19↓ 370.5%
25K· 15.53 mi
11:36/mi
2:43:54
↑ 66↓ 880.2%
30K· 18.64 mi
11:38/mi
3:20:04
↑ 181↓ 1480.2%
20M
11:43/mi
3:35:59
↑ 64↓ 500.2%
21M
13:49/mi
3:49:48
↑ 106↓ 241.6%
35K· 21.75 mi
11:59/mi
3:58:46
↑ 17↓ 861.7%
23M
11:26/mi
4:13:05
↑ 23↓ 630.6%
24M
11:15/mi
4:24:20
↓ 821.3%
40K· 24.85 mi
11:21/mi
4:34:02
↓ 200.3%
25.2M
11:33/mi
4:38:01
↑ 13↓ 160.2%
Finish· 26.22 mi
10:30/mi
4:48:43
↑ 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
Time2:15:46
Pace10:21 /mi
2nd Half
Distance13.11 mi
Time2:32:57
Pace11:40 /mi
📊Positive Split: 12.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:3231:4610:1331:46
10:13
-
10K
6.21 mi12:20:221:02:3610:0430:50
9:55
-0:18
15K
9.32 mi12:53:001:35:1410:1332:38
10:30
+0:35
20K
12.43 mi13:26:162:08:3010:2033:16
10:42
+0:12
Half
13.11 mi13:33:322:15:4610:217:16
10:39
-0:03
25K
15.53 mi14:01:402:43:5410:3328:08
11:36
+0:57
30K
18.64 mi14:37:503:20:0410:4436:10
11:38
+0:02
20M
20.00 mi14:53:453:35:5910:4815:55
11:43
+0:05
21M
21.00 mi15:07:343:49:4810:5713:49
13:49
+2:06
35K
21.75 mi15:16:323:58:4610:598:58
11:59
-1:50
23M
23.00 mi15:30:514:13:0511:0014:19
11:26
-0:33
24M
24.00 mi15:42:064:24:2011:0111:15
11:15
-0:11
40K
24.85 mi15:51:484:34:0211:029:42
11:21
+0:06
25.2M
25.20 mi15:55:474:38:0111:023:59
11:33
+0:12
Finish
26.22 mi16:06:294:48:4311:0110:42
10:30
-1:03

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

9:55 /mi

Average Pace

11:01 /mi

Slowest Pace

13:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:28

51% of race

Time at Steady Pace

1:59:28

41% of race

Time at Slower Pace

22:47

8% of race

Average Pace: 11:01 /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 mi11:49:3231:4610:1331:46
10:13
#24010
10K
6.21 mi12:20:221:02:3610:0430:50
9:55
#23795
15K
9.32 mi12:53:001:35:1410:1332:38
10:30
#24049
20K
12.43 mi13:26:162:08:3010:2033:16
10:42
#24089
Half
13.11 mi13:33:322:15:4610:217:16
10:39
#24118
25K
15.53 mi14:01:402:43:5410:3328:08
11:36
#24277
30K
18.64 mi14:37:503:20:0410:4436:10
11:38
#24231
20M
20.00 mi14:53:453:35:5910:4815:55
11:43
#24194
21M
21.00 mi15:07:343:49:4810:5713:49
13:49
#24253
35K
21.75 mi15:16:323:58:4610:598:58
11:59
#24277
23M
23.00 mi15:30:514:13:0511:0014:19
11:26
#24231
24M
24.00 mi15:42:064:24:2011:0111:15
11:15
#24214
40K
24.85 mi15:51:484:34:0211:029:42
11:21
#24151
25.2M
25.20 mi15:55:474:38:0111:023:59
11:33
#24118
Finish
26.22 mi16:06:294:48:4311:0110:42
10:30
#24091
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi24010140941409424460(Top 92%)14281(Top 94%)14281(Top 2601%)
10K6.21 mi3.10 mi23795+21513990+10413990+10423541(Top 88%)13873(Top 91%)13873(Top 2527%)
15K9.32 mi3.11 mi24049-25414110-12014110-12024460(Top 92%)14281(Top 94%)14281(Top 2601%)
20K12.43 mi3.11 mi24089-4014126-1614126-1624185(Top 91%)14146(Top 93%)14146(Top 2577%)
Half13.11 mi0.68 mi24118-2914132-614132-624452(Top 92%)14247(Top 94%)14247(Top 2595%)
25K15.53 mi2.42 mi24277-15914193-6114193-6124796(Top 93%)14376(Top 95%)14376(Top 2619%)
30K18.64 mi3.11 mi24231+4614146+4714146+4724043(Top 90%)13987(Top 92%)13987(Top 2548%)
20M20.00 mi1.36 mi24194+3714120+2614120+2623827(Top 90%)13827(Top 91%)13827(Top 2519%)
21M21.00 mi1.00 mi24253-5914143-2314143-2324874(Top 93%)14308(Top 94%)14308(Top 2606%)
35K21.75 mi0.75 mi24277-2414146-314146-324672(Top 93%)14157(Top 93%)14157(Top 2579%)
23M23.00 mi1.25 mi24231+4614119+2714119+2723130(Top 87%)13450(Top 89%)13450(Top 2450%)
24M24.00 mi1.00 mi24214+1714106+1314106+1323502(Top 88%)13586(Top 90%)13586(Top 2475%)
40K24.85 mi0.85 mi24151+6314068+3814068+3822957(Top 86%)13299(Top 88%)13299(Top 2422%)
25.2M25.20 mi0.35 mi24118+3314047+2114047+2121661(Top 81%)12706(Top 84%)12706(Top 2314%)
Finish26.22 mi1.02 mi24091+2714035+1214035+1222994(Top 86%)13334(Top 88%)13334(Top 2429%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21story building
+97ft-345ft

Overall

24460

Males

14281

M65-69

14281

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

23541

Males

13873

M65-69

13873

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+67ft-78ft

Overall

24460

Males

14281

M65-69

14281

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

24185

Males

14146

M65-69

14146

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

24452

Males

14247

M65-69

14247

Half→25K

13.1 - 15.5 mi

Top 93%
×4story building
+66ft-88ft

Overall

24796

Males

14376

M65-69

14376

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

24043

Males

13987

M65-69

13987

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

23827

Males

13827

M65-69

13827

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

24874

Males

14308

M65-69

14308

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

24672

Males

14157

M65-69

14157

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

23130

Males

13450

M65-69

13450

23M→24M

23.0 - 24.0 mi

Top 88%
×6story building
+12ft-82ft

Overall

23502

Males

13586

M65-69

13586

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22957

Males

13299

M65-69

13299

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21661

Males

12706

M65-69

12706

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

22994

Males

13334

M65-69

13334

Passing Analysis

Category:
Athletes Passed
1026
Passed By
1107
Net Change
-81
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24010
5K → 10K334119+215#24010#23795
10K → 15K39293-254#23795#24049
15K → 20K92132-40#24049#24089
20K → Half1645-29#24089#24118
Half → 25K49208-159#24118#24277
25K → 30K14094+46#24277#24231
30K → 20M7538+37#24231#24194
20M → 21M1776-59#24194#24253
21M → 35K1943-24#24253#24277
35K → 23M6216+46#24277#24231
23M → 24M3215+17#24231#24214
24M → 40K707+63#24214#24151
40K → 25.2M363+33#24151#24118
25.2M → Finish4518+27#24118#24091
TOTALS10261107-81
📊

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