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BOSTON MARATHON 2023

Masamichi Udagawa

Bib: 4868•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 23%
Masters (Masters Men)
#0 / 9891
Top 11%
Division (M55-59)
#0 / 1422
Top 2%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:35
Rank: #3058
Start → 5K
20:35 | 6:38/mi
10K· 6.21 mi
40:55
Rank: #3049 (+9)
5K → 10K
20:20 | 6:33/mi
15K· 9.32 mi
1:01:41
Rank: #3335 (-286)
10K → 15K
20:46 | 6:41/mi
20K· 12.43 mi
1:22:32
Rank: #3392 (-57)
15K → 20K
20:51 | 6:43/mi
Half· 13.11 mi
1:27:02
Rank: #3384 (+8)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:43:30
Rank: #3448 (-64)
Half → 25K
16:28 | 6:47/mi
30K· 18.64 mi
2:05:15
Rank: #3605 (-157)
25K → 30K
21:45 | 7:00/mi
20M
2:14:47
Rank: #3609 (-4)
30K → 20M
9:32 | 7:01/mi
21M
2:22:22
Rank: #3692 (-83)
20M → 21M
7:35 | 7:35/mi
35K· 21.75 mi
2:27:31
Rank: #3714 (-22)
21M → 35K
5:09 | 6:53/mi
23M
2:36:30
Rank: #3786 (-72)
35K → 23M
8:59 | 7:10/mi
24M
2:43:20
Rank: #3778 (+8)
23M → 24M
6:50 | 6:50/mi
40K· 24.85 mi
2:49:20
Rank: #3768 (+10)
24M → 40K
6:00 | 7:01/mi
25.2M
2:51:59
Rank: #3796 (-28)
40K → 25.2M
2:39 | 7:41/mi
Finish· 26.22 mi
2:58:47
Rank: #3776 (+20)
25.2M → Finish
6:48 | 6:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:02
Pace6:38 /mi
2nd Half
Distance13.11 mi
Time1:31:45
Pace7:00 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2720:356:3820:35
6:38
-
10K
6.21 mi10:42:4740:556:3520:20
6:33
-0:05
15K
9.32 mi11:03:331:01:416:3720:46
6:41
+0:08
20K
12.43 mi11:24:241:22:326:3820:51
6:43
+0:02
Half
13.11 mi11:28:541:27:026:384:30
6:36
-0:07
25K
15.53 mi11:45:221:43:306:4016:28
6:47
+0:11
30K
18.64 mi12:07:072:05:156:4321:45
7:00
+0:13
20M
20.00 mi12:16:392:14:476:449:32
7:01
+0:01
21M
21.00 mi12:24:142:22:226:477:35
7:35
+0:34
35K
21.75 mi12:29:232:27:316:475:09
6:53
-0:42
23M
23.00 mi12:38:222:36:306:488:59
7:10
+0:17
24M
24.00 mi12:45:122:43:206:486:50
6:50
-0:20
40K
24.85 mi12:51:122:49:206:496:00
7:01
+0:11
25.2M
25.20 mi12:53:512:51:596:492:39
7:41
+0:40
Finish
26.22 mi13:00:392:58:476:496:48
6:40
-1:01

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

6:33 /mi

Average Pace

6:49 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:33

94% of race

Time at Steady Pace

10:14

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:49 /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 mi10:22:2720:356:3820:35
6:38
#3058
10K
6.21 mi10:42:4740:556:3520:20
6:33
#3049
15K
9.32 mi11:03:331:01:416:3720:46
6:41
#3335
20K
12.43 mi11:24:241:22:326:3820:51
6:43
#3392
Half
13.11 mi11:28:541:27:026:384:30
6:36
#3384
25K
15.53 mi11:45:221:43:306:4016:28
6:47
#3448
30K
18.64 mi12:07:072:05:156:4321:45
7:00
#3605
20M
20.00 mi12:16:392:14:476:449:32
7:01
#3609
21M
21.00 mi12:24:142:22:226:477:35
7:35
#3692
35K
21.75 mi12:29:232:27:316:475:09
6:53
#3714
23M
23.00 mi12:38:222:36:306:488:59
7:10
#3786
24M
24.00 mi12:45:122:43:206:486:50
6:50
#3778
40K
24.85 mi12:51:122:49:206:496:00
7:01
#3768
25.2M
25.20 mi12:53:512:51:596:492:39
7:41
#3796
Finish
26.22 mi13:00:392:58:476:496:48
6:40
#3776
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi3058289828983979(Top 15%)3740(Top 25%)3740(Top 263%)
10K6.21 mi3.10 mi3049+92904-62904-63085(Top 12%)2943(Top 19%)2943(Top 207%)
15K9.32 mi3.11 mi3335-2863164-2603164-2603979(Top 15%)3740(Top 25%)3740(Top 263%)
20K12.43 mi3.11 mi3392-573218-543218-543664(Top 14%)3468(Top 23%)3468(Top 244%)
Half13.11 mi0.68 mi3384+83213+53213+53415(Top 13%)3246(Top 21%)3246(Top 228%)
25K15.53 mi2.42 mi3448-643272-593272-594065(Top 15%)3811(Top 25%)3811(Top 268%)
30K18.64 mi3.11 mi3605-1573410-1383410-1384335(Top 16%)4027(Top 27%)4027(Top 283%)
20M20.00 mi1.36 mi3609-43413-33413-34103(Top 15%)3793(Top 25%)3793(Top 267%)
21M21.00 mi1.00 mi3692-833487-743487-744970(Top 19%)4448(Top 29%)4448(Top 313%)
35K21.75 mi0.75 mi3714-223503-163503-164650(Top 17%)4215(Top 28%)4215(Top 296%)
23M23.00 mi1.25 mi3786-723565-623565-624651(Top 17%)4194(Top 28%)4194(Top 295%)
24M24.00 mi1.00 mi3778+83553+123553+123819(Top 14%)3491(Top 23%)3491(Top 245%)
40K24.85 mi0.85 mi3768+103542+113542+113920(Top 15%)3523(Top 23%)3523(Top 248%)
25.2M25.20 mi0.35 mi3796-283567-253567-254735(Top 18%)4088(Top 27%)4088(Top 287%)
Finish26.22 mi1.02 mi3776+203544+233544+233355(Top 13%)3013(Top 20%)3013(Top 212%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

3979

Males

3740

M55-59

3740

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3085

Males

2943

M55-59

2943

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

3979

Males

3740

M55-59

3740

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3664

Males

3468

M55-59

3468

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3415

Males

3246

M55-59

3246

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4065

Males

3811

M55-59

3811

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4335

Males

4027

M55-59

4027

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4103

Males

3793

M55-59

3793

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

4970

Males

4448

M55-59

4448

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4650

Males

4215

M55-59

4215

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4651

Males

4194

M55-59

4194

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3819

Males

3491

M55-59

3491

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

3920

Males

3523

M55-59

3523

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4735

Males

4088

M55-59

4088

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3355

Males

3013

M55-59

3013

Passing Analysis

Category:
Athletes Passed
714
Passed By
1432
Net Change
-718
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3058
5K → 10K163154+9#3058#3049
10K → 15K20306-286#3049#3335
15K → 20K65122-57#3335#3392
20K → Half2113+8#3392#3384
Half → 25K46110-64#3384#3448
25K → 30K58215-157#3448#3605
30K → 20M5862-4#3605#3609
20M → 21M34117-83#3609#3692
21M → 35K2244-22#3692#3714
35K → 23M39111-72#3714#3786
23M → 24M5143+8#3786#3778
24M → 40K5949+10#3778#3768
40K → 25.2M1139-28#3768#3796
25.2M → Finish6747+20#3796#3776
TOTALS7141432-718
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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