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BOSTON MARATHON 2024

Seiko Kanasugi

Bib: 20415•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Top 47%
Division (F45-49)
#0 / 1753
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
8:09/mi
25:20
↑ 97↓ 3451.5%
10K· 6.21 mi
8:14/mi
50:55
↑ 79↓ 1380.4%
15K· 9.32 mi
8:17/mi
1:16:39
↑ 67↓ 78
20K· 12.43 mi
8:32/mi
1:43:11
↑ 106↓ 860.1%
Half· 13.11 mi
8:33/mi
1:49:01
↑ 19↓ 370.5%
25K· 15.53 mi
9:04/mi
2:11:00
↑ 66↓ 880.2%
30K· 18.64 mi
9:39/mi
2:40:59
↑ 181↓ 1480.2%
20M
9:51/mi
2:54:22
↑ 64↓ 500.2%
21M
11:09/mi
3:05:31
↑ 106↓ 241.6%
35K· 21.75 mi
9:40/mi
3:12:45
↑ 17↓ 861.7%
23M
10:28/mi
3:25:51
↑ 23↓ 630.6%
24M
10:22/mi
3:36:13
↓ 821.3%
40K· 24.85 mi
11:07/mi
3:45:43
↓ 200.3%
25.2M
11:48/mi
3:49:47
↑ 13↓ 160.2%
Finish· 26.22 mi
9:29/mi
3:59:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:01
Pace8:19 /mi
2nd Half
Distance13.11 mi
Time2:10:26
Pace9:57 /mi
📊Positive Split: 19.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:2725:208:0925:20
8:09
-
10K
6.21 mi11:46:0250:558:1225:35
8:14
+0:05
15K
9.32 mi12:11:461:16:398:1325:44
8:17
+0:03
20K
12.43 mi12:38:181:43:118:1826:32
8:32
+0:15
Half
13.11 mi12:44:081:49:018:195:50
8:33
+0:01
25K
15.53 mi13:06:072:11:008:2621:59
9:04
+0:31
30K
18.64 mi13:36:062:40:598:3829:59
9:39
+0:35
20M
20.00 mi13:49:292:54:228:4313:23
9:51
+0:12
21M
21.00 mi14:00:383:05:318:5011:09
11:09
+1:18
35K
21.75 mi14:07:523:12:458:527:14
9:40
-1:29
23M
23.00 mi14:20:583:25:518:5713:06
10:28
+0:48
24M
24.00 mi14:31:203:36:139:0110:22
10:22
-0:06
40K
24.85 mi14:40:503:45:439:059:30
11:07
+0:45
25.2M
25.20 mi14:44:543:49:479:074:04
11:48
+0:41
Finish
26.22 mi14:54:343:59:279:089:40
9:29
-2:19

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

8:09 /mi

Average Pace

9:08 /mi

Slowest Pace

11:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:00

55% of race

Time at Steady Pace

1:00:16

25% of race

Time at Slower Pace

48:11

20% of race

Average Pace: 9:08 /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 mi11:20:2725:208:0925:20
8:09
#15750
10K
6.21 mi11:46:0250:558:1225:35
8:14
#15730
15K
9.32 mi12:11:461:16:398:1325:44
8:17
#15503
20K
12.43 mi12:38:181:43:118:1826:32
8:32
#15312
Half
13.11 mi12:44:081:49:018:195:50
8:33
#15331
25K
15.53 mi13:06:072:11:008:2621:59
9:04
#15404
30K
18.64 mi13:36:062:40:598:3829:59
9:39
#15541
20M
20.00 mi13:49:292:54:228:4313:23
9:51
#15597
21M
21.00 mi14:00:383:05:318:5011:09
11:09
#15733
35K
21.75 mi14:07:523:12:458:527:14
9:40
#15759
23M
23.00 mi14:20:583:25:518:5713:06
10:28
#15877
24M
24.00 mi14:31:203:36:139:0110:22
10:22
#15976
40K
24.85 mi14:40:503:45:439:059:30
11:07
#16089
25.2M
25.20 mi14:44:543:49:479:074:04
11:48
#16104
Finish
26.22 mi14:54:343:59:279:089:40
9:29
#16139
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi157505418541815194(Top 59%)5083(Top 47%)5083(Top 290%)
10K6.21 mi3.10 mi15730+205375+435375+4315758(Top 62%)5381(Top 49%)5381(Top 307%)
15K9.32 mi3.11 mi15503+2275249+1265249+12615194(Top 59%)5083(Top 47%)5083(Top 290%)
20K12.43 mi3.11 mi15312+1915148+1015148+10115031(Top 59%)5032(Top 46%)5032(Top 287%)
Half13.11 mi0.68 mi15331-195164-165164-1616050(Top 63%)5659(Top 52%)5659(Top 323%)
25K15.53 mi2.42 mi15404-735239-755239-7515814(Top 62%)5615(Top 51%)5615(Top 320%)
30K18.64 mi3.11 mi15541-1375403-1645403-16416050(Top 63%)5999(Top 55%)5999(Top 342%)
20M20.00 mi1.36 mi15597-565474-715474-7115951(Top 62%)6179(Top 57%)6179(Top 352%)
21M21.00 mi1.00 mi15733-1365600-1265600-12616730(Top 65%)6713(Top 61%)6713(Top 383%)
35K21.75 mi0.75 mi15759-265642-425642-4216099(Top 63%)6391(Top 59%)6391(Top 365%)
23M23.00 mi1.25 mi15877-1185743-1015743-10116963(Top 66%)6896(Top 63%)6896(Top 393%)
24M24.00 mi1.00 mi15976-995832-895832-8917476(Top 68%)7190(Top 66%)7190(Top 410%)
40K24.85 mi0.85 mi16089-1135915-835915-8318390(Top 72%)7693(Top 70%)7693(Top 439%)
25.2M25.20 mi0.35 mi16104-155936-215936-2116837(Top 66%)6947(Top 64%)6947(Top 396%)
Finish26.22 mi1.02 mi16139-355987-515987-5116481(Top 65%)6745(Top 62%)6745(Top 385%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15194

Females

5083

F45-49

5083

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

15758

Females

5381

F45-49

5381

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15194

Females

5083

F45-49

5083

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15031

Females

5032

F45-49

5032

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

16050

Females

5659

F45-49

5659

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

15814

Females

5615

F45-49

5615

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

16050

Females

5999

F45-49

5999

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

15951

Females

6179

F45-49

6179

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

16730

Females

6713

F45-49

6713

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

16099

Females

6391

F45-49

6391

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

16963

Females

6896

F45-49

6896

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

17476

Females

7190

F45-49

7190

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

18390

Females

7693

F45-49

7693

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

16837

Females

6947

F45-49

6947

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

16481

Females

6745

F45-49

6745

Passing Analysis

Category:
Athletes Passed
1916
Passed By
2305
Net Change
-389
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15750
5K → 10K289269+20#15750#15730
10K → 15K342115+227#15730#15503
15K → 20K318127+191#15503#15312
20K → Half3251-19#15312#15331
Half → 25K197270-73#15331#15404
25K → 30K210347-137#15404#15541
30K → 20M103159-56#15541#15597
20M → 21M78214-136#15597#15733
21M → 35K6086-26#15733#15759
35K → 23M80198-118#15759#15877
23M → 24M47146-99#15877#15976
24M → 40K56169-113#15976#16089
40K → 25.2M3247-15#16089#16104
25.2M → Finish72107-35#16104#16139
TOTALS19162305-389
📊

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