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BOSTON MARATHON 2024

Noriko Sanefuji

Bib: 22235•F

DC

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Top 48%
Division (F50-54)
#0 / 1187
Top 44%
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
8:27/mi
26:14
↑ 97↓ 3451.5%
10K· 6.21 mi
8:39/mi
53:06
↑ 79↓ 1380.4%
15K· 9.32 mi
8:47/mi
1:20:23
↑ 67↓ 78
20K· 12.43 mi
9:04/mi
1:48:32
↑ 106↓ 860.1%
Half· 13.11 mi
8:56/mi
1:54:38
↑ 19↓ 370.5%
25K· 15.53 mi
9:32/mi
2:17:46
↑ 66↓ 880.2%
30K· 18.64 mi
9:39/mi
2:47:46
↑ 181↓ 1480.2%
20M
9:41/mi
3:00:56
↑ 64↓ 500.2%
21M
10:27/mi
3:11:23
↑ 106↓ 241.6%
35K· 21.75 mi
9:11/mi
3:18:15
↑ 17↓ 861.7%
23M
9:54/mi
3:30:39
↑ 23↓ 630.6%
24M
9:18/mi
3:39:57
↓ 821.3%
40K· 24.85 mi
9:07/mi
3:47:45
↓ 200.3%
25.2M
9:37/mi
3:51:04
↑ 13↓ 160.2%
Finish· 26.22 mi
8:29/mi
3:59:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:38
Pace8:45 /mi
2nd Half
Distance13.11 mi
Time2:05:05
Pace9:33 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:2926:148:2726:14
8:27
-
10K
6.21 mi11:52:2153:068:3326:52
8:39
+0:12
15K
9.32 mi12:19:381:20:238:3727:17
8:47
+0:08
20K
12.43 mi12:47:471:48:328:4428:09
9:04
+0:17
Half
13.11 mi12:53:531:54:388:456:06
8:56
-0:08
25K
15.53 mi13:17:012:17:468:5223:08
9:32
+0:36
30K
18.64 mi13:47:012:47:469:0030:00
9:39
+0:07
20M
20.00 mi14:00:113:00:569:0313:10
9:41
+0:02
21M
21.00 mi14:10:383:11:239:0710:27
10:27
+0:46
35K
21.75 mi14:17:303:18:159:076:52
9:11
-1:16
23M
23.00 mi14:29:543:30:399:1012:24
9:54
+0:43
24M
24.00 mi14:39:123:39:579:109:18
9:18
-0:36
40K
24.85 mi14:47:003:47:459:107:48
9:07
-0:11
25.2M
25.20 mi14:50:193:51:049:103:19
9:37
+0:30
Finish
26.22 mi14:58:583:59:439:098:39
8:29
-1:08

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

8:27 /mi

Average Pace

9:09 /mi

Slowest Pace

10:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:02

37% of race

Time at Steady Pace

58:13

24% of race

Time at Slower Pace

1:32:28

39% of race

Average Pace: 9:09 /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 mi11:25:2926:148:2726:14
8:27
#17467
10K
6.21 mi11:52:2153:068:3326:52
8:39
#17787
15K
9.32 mi12:19:381:20:238:3727:17
8:47
#17800
20K
12.43 mi12:47:471:48:328:4428:09
9:04
#17686
Half
13.11 mi12:53:531:54:388:456:06
8:56
#17702
25K
15.53 mi13:17:012:17:468:5223:08
9:32
#17688
30K
18.64 mi13:47:012:47:469:0030:00
9:39
#17364
20M
20.00 mi14:00:113:00:569:0313:10
9:41
#17199
21M
21.00 mi14:10:383:11:239:0710:27
10:27
#17053
35K
21.75 mi14:17:303:18:159:076:52
9:11
#16937
23M
23.00 mi14:29:543:30:399:1012:24
9:54
#16837
24M
24.00 mi14:39:123:39:579:109:18
9:18
#16694
40K
24.85 mi14:47:003:47:459:107:48
9:07
#16456
25.2M
25.20 mi14:50:193:51:049:103:19
9:37
#16330
Finish
26.22 mi14:58:583:59:439:098:39
8:29
#16183
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi174676447644717894(Top 70%)6656(Top 61%)6656(Top 561%)
10K6.21 mi3.10 mi17787-3206607-1606607-16018105(Top 71%)6785(Top 62%)6785(Top 572%)
15K9.32 mi3.11 mi17800-136612-56612-517894(Top 70%)6656(Top 61%)6656(Top 561%)
20K12.43 mi3.11 mi17686+1146566+466566+4617597(Top 69%)6478(Top 59%)6478(Top 546%)
Half13.11 mi0.68 mi17702-166580-146580-1418006(Top 70%)6786(Top 62%)6786(Top 572%)
25K15.53 mi2.42 mi17688+146590-106590-1017699(Top 69%)6656(Top 61%)6656(Top 561%)
30K18.64 mi3.11 mi17364+3246465+1256465+12516072(Top 63%)6008(Top 55%)6008(Top 506%)
20M20.00 mi1.36 mi17199+1656400+656400+6515319(Top 60%)5852(Top 54%)5852(Top 493%)
21M21.00 mi1.00 mi17053+1466356+446356+4414684(Top 57%)5664(Top 52%)5664(Top 477%)
35K21.75 mi0.75 mi16937+1166315+416315+4114194(Top 56%)5437(Top 50%)5437(Top 458%)
23M23.00 mi1.25 mi16837+1006281+346281+3415158(Top 59%)5998(Top 55%)5998(Top 505%)
24M24.00 mi1.00 mi16694+1436219+626219+6213564(Top 53%)5217(Top 48%)5217(Top 440%)
40K24.85 mi0.85 mi16456+2386124+956124+9511464(Top 45%)4287(Top 39%)4287(Top 361%)
25.2M25.20 mi0.35 mi16330+1266069+556069+559327(Top 37%)3342(Top 31%)3342(Top 282%)
Finish26.22 mi1.02 mi16183+1476011+586011+5811492(Top 45%)4233(Top 39%)4233(Top 357%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

17894

Females

6656

F50-54

6656

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

18105

Females

6785

F50-54

6785

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

17894

Females

6656

F50-54

6656

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

17597

Females

6478

F50-54

6478

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

18006

Females

6786

F50-54

6786

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

17699

Females

6656

F50-54

6656

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

16072

Females

6008

F50-54

6008

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

15319

Females

5852

F50-54

5852

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

14684

Females

5664

F50-54

5664

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

14194

Females

5437

F50-54

5437

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

15158

Females

5998

F50-54

5998

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

13564

Females

5217

F50-54

5217

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11464

Females

4287

F50-54

4287

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9327

Females

3342

F50-54

3342

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

11492

Females

4233

F50-54

4233

Passing Analysis

Category:
Athletes Passed
2712
Passed By
1428
Net Change
+1284
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17467
5K → 10K172492-320#17467#17787
10K → 15K222235-13#17787#17800
15K → 20K312198+114#17800#17686
20K → Half3450-16#17686#17702
Half → 25K210196+14#17702#17688
25K → 30K429105+324#17688#17364
30K → 20M19227+165#17364#17199
20M → 21M18135+146#17199#17053
21M → 35K13014+116#17053#16937
35K → 23M14545+100#16937#16837
23M → 24M15714+143#16837#16694
24M → 40K2413+238#16694#16456
40K → 25.2M1304+126#16456#16330
25.2M → Finish15710+147#16330#16183
TOTALS27121428+1284
📊

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