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BOSTON MARATHON 2023

Miki Yamada

Bib: 15781•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 47%
Division (F50-54)
#0 / 1207
Top 43%
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
8:25/mi
26:10
↑ 97↓ 3451.5%
10K· 6.21 mi
8:28/mi
52:29
↑ 79↓ 1380.4%
15K· 9.32 mi
8:36/mi
1:19:11
↑ 67↓ 78
20K· 12.43 mi
8:35/mi
1:45:50
↑ 106↓ 860.1%
Half· 13.11 mi
8:21/mi
1:51:32
↑ 19↓ 370.5%
25K· 15.53 mi
8:40/mi
2:12:32
↑ 66↓ 880.2%
30K· 18.64 mi
8:57/mi
2:40:20
↑ 181↓ 1480.2%
20M
9:02/mi
2:52:36
↑ 64↓ 500.2%
21M
9:53/mi
3:02:29
↑ 106↓ 241.6%
35K· 21.75 mi
8:49/mi
3:09:05
↑ 17↓ 861.7%
23M
9:07/mi
3:20:30
↑ 23↓ 630.6%
24M
8:58/mi
3:29:28
↓ 821.3%
40K· 24.85 mi
9:11/mi
3:37:19
↓ 200.3%
25.2M
11:39/mi
3:41:20
↑ 13↓ 160.2%
Finish· 26.22 mi
9:06/mi
3:50:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:32
Pace8:30 /mi
2nd Half
Distance13.11 mi
Time1:59:04
Pace9:05 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:5426:108:2526:10
8:25
-
10K
6.21 mi11:23:1352:298:2726:19
8:28
+0:03
15K
9.32 mi11:49:551:19:118:3026:42
8:36
+0:08
20K
12.43 mi12:16:341:45:508:3126:39
8:35
-0:01
Half
13.11 mi12:22:161:51:328:305:42
8:21
-0:14
25K
15.53 mi12:43:162:12:328:3221:00
8:40
+0:19
30K
18.64 mi13:11:042:40:208:3627:48
8:57
+0:17
20M
20.00 mi13:23:202:52:368:3812:16
9:02
+0:05
21M
21.00 mi13:33:133:02:298:419:53
9:53
+0:51
35K
21.75 mi13:39:493:09:058:426:36
8:49
-1:04
23M
23.00 mi13:51:143:20:308:4311:25
9:07
+0:18
24M
24.00 mi14:00:123:29:288:448:58
8:58
-0:09
40K
24.85 mi14:08:033:37:198:457:51
9:11
+0:13
25.2M
25.20 mi14:12:043:41:208:474:01
11:39
+2:28
Finish
26.22 mi14:21:203:50:368:489:16
9:06
-2:33

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

8:21 /mi

Average Pace

8:48 /mi

Slowest Pace

11:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

58:11

25% of race

Time at Steady Pace

2:38:31

69% of race

Time at Slower Pace

13:54

6% of race

Average Pace: 8:48 /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 mi10:56:5426:108:2526:10
8:25
#17052
10K
6.21 mi11:23:1352:298:2726:19
8:28
#17523
15K
9.32 mi11:49:551:19:118:3026:42
8:36
#17831
20K
12.43 mi12:16:341:45:508:3126:39
8:35
#17671
Half
13.11 mi12:22:161:51:328:305:42
8:21
#17613
25K
15.53 mi12:43:162:12:328:3221:00
8:40
#17525
30K
18.64 mi13:11:042:40:208:3627:48
8:57
#17360
20M
20.00 mi13:23:202:52:368:3812:16
9:02
#17300
21M
21.00 mi13:33:133:02:298:419:53
9:53
#17315
35K
21.75 mi13:39:493:09:058:426:36
8:49
#17306
23M
23.00 mi13:51:143:20:308:4311:25
9:07
#17278
24M
24.00 mi14:00:123:29:288:448:58
8:58
#17260
40K
24.85 mi14:08:033:37:198:457:51
9:11
#17250
25.2M
25.20 mi14:12:043:41:208:474:01
11:39
#17414
Finish
26.22 mi14:21:203:50:368:489:16
9:06
#17472
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi170525966596618408(Top 69%)6740(Top 59%)6740(Top 558%)
10K6.21 mi3.10 mi17523-4716238-2726238-27218071(Top 68%)6519(Top 57%)6519(Top 540%)
15K9.32 mi3.11 mi17831-3086421-1836421-18318408(Top 69%)6740(Top 59%)6740(Top 558%)
20K12.43 mi3.11 mi17671+1606325+966325+9617360(Top 65%)6147(Top 54%)6147(Top 509%)
Half13.11 mi0.68 mi17613+586290+356290+3516917(Top 64%)5863(Top 51%)5863(Top 486%)
25K15.53 mi2.42 mi17525+886252+386252+3817180(Top 65%)6108(Top 53%)6108(Top 506%)
30K18.64 mi3.11 mi17360+1656167+856167+8516912(Top 64%)6017(Top 53%)6017(Top 499%)
20M20.00 mi1.36 mi17300+606156+116156+1116710(Top 63%)5983(Top 52%)5983(Top 496%)
21M21.00 mi1.00 mi17315-156186-306186-3017599(Top 66%)6522(Top 57%)6522(Top 540%)
35K21.75 mi0.75 mi17306+96188-26188-217089(Top 64%)6327(Top 55%)6327(Top 524%)
23M23.00 mi1.25 mi17278+286185+36185+316647(Top 63%)6110(Top 53%)6110(Top 506%)
24M24.00 mi1.00 mi17260+186180+56180+517091(Top 64%)6408(Top 56%)6408(Top 531%)
40K24.85 mi0.85 mi17250+106200-206200-2017047(Top 64%)6432(Top 56%)6432(Top 533%)
25.2M25.20 mi0.35 mi17414-1646299-996299-9921856(Top 82%)9040(Top 79%)9040(Top 749%)
Finish26.22 mi1.02 mi17472-586347-486347-4818443(Top 69%)7139(Top 62%)7139(Top 591%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18408

Females

6740

F50-54

6740

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

18071

Females

6519

F50-54

6519

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18408

Females

6740

F50-54

6740

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

17360

Females

6147

F50-54

6147

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

16917

Females

5863

F50-54

5863

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

17180

Females

6108

F50-54

6108

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

16912

Females

6017

F50-54

6017

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16710

Females

5983

F50-54

5983

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

17599

Females

6522

F50-54

6522

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

17089

Females

6327

F50-54

6327

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16647

Females

6110

F50-54

6110

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

17091

Females

6408

F50-54

6408

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

17047

Females

6432

F50-54

6432

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21856

Females

9040

F50-54

9040

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

18443

Females

7139

F50-54

7139

Passing Analysis

Category:
Athletes Passed
1489
Passed By
1909
Net Change
-420
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17052
5K → 10K146617-471#17052#17523
10K → 15K97405-308#17523#17831
15K → 20K24787+160#17831#17671
20K → Half646+58#17671#17613
Half → 25K15971+88#17613#17525
25K → 30K24378+165#17525#17360
30K → 20M12161+60#17360#17300
20M → 21M7489-15#17300#17315
21M → 35K5546+9#17315#17306
35K → 23M9264+28#17306#17278
23M → 24M7355+18#17278#17260
24M → 40K7363+10#17260#17250
40K → 25.2M4168-164#17250#17414
25.2M → Finish4199-58#17414#17472
TOTALS14891909-420
📊

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