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BOSTON MARATHON 2023

Asuka Eguchi

Bib: 18234•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
8:27/mi
26:14
↑ 97↓ 3451.5%
10K· 6.21 mi
8:41/mi
53:14
↑ 79↓ 1380.4%
15K· 9.32 mi
9:08/mi
1:21:38
↑ 67↓ 78
20K· 12.43 mi
9:30/mi
1:51:10
↑ 106↓ 860.1%
Half· 13.11 mi
9:16/mi
1:57:29
↑ 19↓ 370.5%
25K· 15.53 mi
9:28/mi
2:20:25
↑ 66↓ 880.2%
30K· 18.64 mi
9:36/mi
2:50:14
↑ 181↓ 1480.2%
20M
9:50/mi
3:03:36
↑ 64↓ 500.2%
21M
10:27/mi
3:14:03
↑ 106↓ 241.6%
35K· 21.75 mi
9:11/mi
3:20:55
↑ 17↓ 861.7%
23M
9:33/mi
3:32:53
↑ 23↓ 630.6%
24M
9:09/mi
3:42:02
↓ 821.3%
40K· 24.85 mi
8:51/mi
3:49:36
↓ 200.3%
25.2M
9:14/mi
3:52:47
↑ 13↓ 160.2%
Finish· 26.22 mi
8:11/mi
4:01:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:29
Pace8:58 /mi
2nd Half
Distance13.11 mi
Time2:03:38
Pace9:26 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:1326:148:2726:14
8:27
-
10K
6.21 mi11:44:1353:148:3427:00
8:41
+0:14
15K
9.32 mi12:12:371:21:388:4628:24
9:08
+0:27
20K
12.43 mi12:42:091:51:108:5729:32
9:30
+0:22
Half
13.11 mi12:48:281:57:298:586:19
9:16
-0:14
25K
15.53 mi13:11:242:20:259:0222:56
9:28
+0:12
30K
18.64 mi13:41:132:50:149:0829:49
9:36
+0:08
20M
20.00 mi13:54:353:03:369:1113:22
9:50
+0:14
21M
21.00 mi14:05:023:14:039:1410:27
10:27
+0:37
35K
21.75 mi14:11:543:20:559:146:52
9:11
-1:16
23M
23.00 mi14:23:523:32:539:1511:58
9:33
+0:22
24M
24.00 mi14:33:013:42:029:159:09
9:09
-0:24
40K
24.85 mi14:40:353:49:369:147:34
8:51
-0:18
25.2M
25.20 mi14:43:463:52:479:143:11
9:14
+0:23
Finish
26.22 mi14:52:064:01:079:128:20
8:11
-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

8:11 /mi

Average Pace

9:12 /mi

Slowest Pace

10:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:09:08

29% of race

Time at Steady Pace

1:46:23

44% of race

Time at Slower Pace

1:05:36

27% of race

Average Pace: 9:12 /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 mi11:17:1326:148:2726:14
8:27
#17194
10K
6.21 mi11:44:1353:148:3427:00
8:41
#18315
15K
9.32 mi12:12:371:21:388:4628:24
9:08
#19387
20K
12.43 mi12:42:091:51:108:5729:32
9:30
#20089
Half
13.11 mi12:48:281:57:298:586:19
9:16
#20187
25K
15.53 mi13:11:242:20:259:0222:56
9:28
#20310
30K
18.64 mi13:41:132:50:149:0829:49
9:36
#20207
20M
20.00 mi13:54:353:03:369:1113:22
9:50
#20184
21M
21.00 mi14:05:023:14:039:1410:27
10:27
#20123
35K
21.75 mi14:11:543:20:559:146:52
9:11
#20063
23M
23.00 mi14:23:523:32:539:1511:58
9:33
#19961
24M
24.00 mi14:33:013:42:029:159:09
9:09
#19874
40K
24.85 mi14:40:353:49:369:147:34
8:51
#19730
25.2M
25.20 mi14:43:463:52:479:143:11
9:14
#19658
Finish
26.22 mi14:52:064:01:079:128:20
8:11
#19491
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi171946064606421113(Top 79%)8293(Top 73%)8293(Top 170%)
10K6.21 mi3.10 mi18315-11216709-6456709-64519382(Top 73%)7309(Top 64%)7309(Top 150%)
15K9.32 mi3.11 mi19387-10727381-6727381-67221113(Top 79%)8293(Top 73%)8293(Top 170%)
20K12.43 mi3.11 mi20089-7027766-3857766-38521575(Top 81%)8560(Top 75%)8560(Top 175%)
Half13.11 mi0.68 mi20187-987820-547820-5421358(Top 80%)8430(Top 74%)8430(Top 173%)
25K15.53 mi2.42 mi20310-1237877-577877-5720702(Top 78%)8103(Top 71%)8103(Top 166%)
30K18.64 mi3.11 mi20207+1037847+307847+3019783(Top 74%)7640(Top 67%)7640(Top 156%)
20M20.00 mi1.36 mi20184+237848-17848-119970(Top 75%)7831(Top 69%)7831(Top 160%)
21M21.00 mi1.00 mi20123+617821+277821+2719445(Top 73%)7608(Top 67%)7608(Top 156%)
35K21.75 mi0.75 mi20063+607793+287793+2818682(Top 70%)7212(Top 63%)7212(Top 148%)
23M23.00 mi1.25 mi19961+1027743+507743+5018568(Top 70%)7167(Top 63%)7167(Top 147%)
24M24.00 mi1.00 mi19874+877697+467697+4617887(Top 67%)6856(Top 60%)6856(Top 140%)
40K24.85 mi0.85 mi19730+1447624+737624+7315412(Top 58%)5544(Top 49%)5544(Top 114%)
25.2M25.20 mi0.35 mi19658+727586+387586+3813948(Top 52%)4759(Top 42%)4759(Top 97%)
Finish26.22 mi1.02 mi19491+1677494+927494+9213338(Top 50%)4397(Top 38%)4397(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

21113

Females

8293

F18-39

8293

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

19382

Females

7309

F18-39

7309

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

21113

Females

8293

F18-39

8293

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

21575

Females

8560

F18-39

8560

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

21358

Females

8430

F18-39

8430

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

20702

Females

8103

F18-39

8103

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

19783

Females

7640

F18-39

7640

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

19970

Females

7831

F18-39

7831

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

19445

Females

7608

F18-39

7608

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

18682

Females

7212

F18-39

7212

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

18568

Females

7167

F18-39

7167

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

17887

Females

6856

F18-39

6856

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15412

Females

5544

F18-39

5544

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

13948

Females

4759

F18-39

4759

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

13338

Females

4397

F18-39

4397

Passing Analysis

Category:
Athletes Passed
1293
Passed By
3590
Net Change
-2297
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17194
5K → 10K491170-1121#17194#18315
10K → 15K151087-1072#18315#19387
15K → 20K48750-702#19387#20089
20K → Half5103-98#20089#20187
Half → 25K83206-123#20187#20310
25K → 30K20198+103#20310#20207
30K → 20M9269+23#20207#20184
20M → 21M10746+61#20184#20123
21M → 35K7414+60#20123#20063
35K → 23M12725+102#20063#19961
23M → 24M10316+87#19961#19874
24M → 40K1462+144#19874#19730
40K → 25.2M731+72#19730#19658
25.2M → Finish1703+167#19658#19491
TOTALS12933590-2297
📊

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