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BOSTON MARATHON 2023

Takuo Katayama

Bib: 13842•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 33%
Gender (Male)
#0 / 15176
Top 47%
Masters (Masters Men)
#0 / 9891
Top 35%
Division (M55-59)
#0 / 1422
Top 16%
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
7:34/mi
23:31
↑ 97↓ 3451.5%
10K· 6.21 mi
7:22/mi
46:23
↑ 79↓ 1380.4%
15K· 9.32 mi
7:30/mi
1:09:42
↑ 67↓ 78
20K· 12.43 mi
7:36/mi
1:33:20
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:38:26
↑ 19↓ 370.5%
25K· 15.53 mi
7:28/mi
1:56:33
↑ 66↓ 880.2%
30K· 18.64 mi
7:33/mi
2:19:59
↑ 181↓ 1480.2%
20M
7:41/mi
2:30:25
↑ 64↓ 500.2%
21M
8:02/mi
2:38:27
↑ 106↓ 241.6%
35K· 21.75 mi
7:26/mi
2:44:01
↑ 17↓ 861.7%
23M
7:47/mi
2:53:46
↑ 23↓ 630.6%
24M
7:35/mi
3:01:21
↓ 821.3%
40K· 24.85 mi
7:44/mi
3:07:58
↓ 200.3%
25.2M
8:04/mi
3:10:45
↑ 13↓ 160.2%
Finish· 26.22 mi
7:19/mi
3:18:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:26
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:39:46
Pace7:37 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0723:317:3423:31
7:34
-
10K
6.21 mi11:36:5946:237:2822:52
7:22
-0:12
15K
9.32 mi12:00:181:09:427:2923:19
7:30
+0:08
20K
12.43 mi12:23:561:33:207:3123:38
7:36
+0:06
Half
13.11 mi12:29:021:38:267:315:06
7:29
-0:07
25K
15.53 mi12:47:091:56:337:3018:07
7:28
-0:01
30K
18.64 mi13:10:352:19:597:3123:26
7:33
+0:05
20M
20.00 mi13:21:012:30:257:3110:26
7:41
+0:08
21M
21.00 mi13:29:032:38:277:338:02
8:02
+0:21
35K
21.75 mi13:34:372:44:017:335:34
7:26
-0:36
23M
23.00 mi13:44:222:53:467:339:45
7:47
+0:21
24M
24.00 mi13:51:573:01:217:337:35
7:35
-0:12
40K
24.85 mi13:58:343:07:587:346:37
7:44
+0:09
25.2M
25.20 mi14:01:213:10:457:342:47
8:04
+0:20
Finish
26.22 mi14:08:483:18:127:347:27
7:19
-0:45

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

7:19 /mi

Average Pace

7:34 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:25

99% of race

Time at Steady Pace

2:47

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:34 /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 mi11:14:0723:317:3423:31
7:34
#10241
10K
6.21 mi11:36:5946:237:2822:52
7:22
#9702
15K
9.32 mi12:00:181:09:427:2923:19
7:30
#9840
20K
12.43 mi12:23:561:33:207:3123:38
7:36
#9913
Half
13.11 mi12:29:021:38:267:315:06
7:29
#9920
25K
15.53 mi12:47:091:56:337:3018:07
7:28
#9672
30K
18.64 mi13:10:352:19:597:3123:26
7:33
#9222
20M
20.00 mi13:21:012:30:257:3110:26
7:41
#9104
21M
21.00 mi13:29:032:38:277:338:02
8:02
#8992
35K
21.75 mi13:34:372:44:017:335:34
7:26
#8950
23M
23.00 mi13:44:222:53:467:339:45
7:47
#8887
24M
24.00 mi13:51:573:01:217:337:35
7:35
#8823
40K
24.85 mi13:58:343:07:587:346:37
7:44
#8803
25.2M
25.20 mi14:01:213:10:457:342:47
8:04
#8746
Finish
26.22 mi14:08:483:18:127:347:27
7:19
#8654
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi102418251825110199(Top 38%)8247(Top 54%)8247(Top 580%)
10K6.21 mi3.10 mi9702+5397983+2687983+2689294(Top 35%)7741(Top 51%)7741(Top 544%)
15K9.32 mi3.11 mi9840-1388070-878070-8710199(Top 38%)8247(Top 54%)8247(Top 580%)
20K12.43 mi3.11 mi9913-738098-288098-2810126(Top 38%)8135(Top 54%)8135(Top 572%)
Half13.11 mi0.68 mi9920-78102-48102-49949(Top 37%)8059(Top 53%)8059(Top 567%)
25K15.53 mi2.42 mi9672+2487944+1587944+1588569(Top 32%)7186(Top 47%)7186(Top 505%)
30K18.64 mi3.11 mi9222+4507637+3077637+3077523(Top 28%)6404(Top 42%)6404(Top 450%)
20M20.00 mi1.36 mi9104+1187541+967541+968015(Top 30%)6605(Top 44%)6605(Top 464%)
21M21.00 mi1.00 mi8992+1127451+907451+907546(Top 28%)6214(Top 41%)6214(Top 437%)
35K21.75 mi0.75 mi8950+427417+347417+348070(Top 30%)6541(Top 43%)6541(Top 460%)
23M23.00 mi1.25 mi8887+637354+637354+638313(Top 31%)6588(Top 43%)6588(Top 463%)
24M24.00 mi1.00 mi8823+647285+697285+698265(Top 31%)6470(Top 43%)6470(Top 455%)
40K24.85 mi0.85 mi8803+207252+337252+338211(Top 31%)6375(Top 42%)6375(Top 448%)
25.2M25.20 mi0.35 mi8746+577207+457207+456896(Top 26%)5528(Top 36%)5528(Top 389%)
Finish26.22 mi1.02 mi8654+927137+707137+707198(Top 27%)5689(Top 37%)5689(Top 400%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10199

Males

8247

M55-59

8247

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

9294

Males

7741

M55-59

7741

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10199

Males

8247

M55-59

8247

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10126

Males

8135

M55-59

8135

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

9949

Males

8059

M55-59

8059

Half→25K

13.1 - 15.5 mi

Top 32%
×4story building
+66ft-88ft

Overall

8569

Males

7186

M55-59

7186

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7523

Males

6404

M55-59

6404

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

8015

Males

6605

M55-59

6605

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7546

Males

6214

M55-59

6214

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

8070

Males

6541

M55-59

6541

35K→23M

21.8 - 23.0 mi

Top 31%
×5story building
+23ft-63ft

Overall

8313

Males

6588

M55-59

6588

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8265

Males

6470

M55-59

6470

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8211

Males

6375

M55-59

6375

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6896

Males

5528

M55-59

5528

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7198

Males

5689

M55-59

5689

Passing Analysis

Category:
Athletes Passed
2434*
Passed By
847
Net Change
+1587
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10241
5K → 10K647*108+539#10241#9702
10K → 15K118256-138#9702#9840
15K → 20K136*209-73#9840#9913
20K → Half2330-7#9913#9920
Half → 25K26315+248#9920#9672
25K → 30K464*14+450#9672#9222
30K → 20M13921+118#9222#9104
20M → 21M14331+112#9104#8992
21M → 35K6018+42#8992#8950
35K → 23M10340+63#8950#8887
23M → 24M9430+64#8887#8823
24M → 40K6646+20#8823#8803
40K → 25.2M669+57#8803#8746
25.2M → Finish11220+92#8746#8654
TOTALS2434*847+1587

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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