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BOSTON MARATHON 2024

Kimiyo Masaka

WI

Bib: 14530 F

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 39%
Division (F18-39)
#0 / 4660
Race Day Weather
55°/45°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:37/mi
23:40
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:36/mi
47:17
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:46/mi
1:11:26
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:46/mi
1:35:35
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:40/mi
1:40:49
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:11/mi
2:00:40
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:04/mi
2:28:50
↑ 181↓ 1480.2%
138 ft elev
20M
9:10/mi
2:41:18
↑ 64↓ 500.2%
148 ft elev
21M
9:47/mi
2:51:05
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
18:04/mi
3:04:36
↑ 17↓ 861.7%
156 ft elev
23M
8:55/mi
3:15:46
↑ 23↓ 630.6%
116 ft elev
24M
8:59/mi
3:24:45
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:58/mi
3:32:25
↓ 200.3%
20 ft elev
25.2M
10:15/mi
3:35:57
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:21/mi
3:44:28
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:40:497:41 /mi⚡ faster
2nd Half
2:03:399:26 /mi+22.6%
Positive split — 22.6% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
23:407:373.11 mi23:40
7:37
-
10K
47:177:373.10 mi23:37
7:36
-0:01
15K
1:11:267:403.11 mi24:09
7:46
+0:10
20K
1:35:357:413.11 mi24:09
7:46
0:00
Half(13.11 mi)
1:40:497:410.68 mi5:14
7:40
-0:06
25K
2:00:407:462.42 mi19:51
8:11
+0:31
30K
2:28:507:593.11 mi28:10
9:04
+0:53
20M
2:41:188:041.36 mi12:28
9:10
+0:06
21M
2:51:058:091.00 mi9:47
9:47
+0:37
35K
3:04:368:290.75 mi13:31
18:04
+8:17
23M
3:15:468:311.25 mi11:10
8:55
-9:09
24M
3:24:458:321.00 mi8:59
8:59
+0:04
40K
3:32:258:330.85 mi7:40
8:58
-0:01
25.2M
3:35:578:340.35 mi3:32
10:15
+1:17
Finish(26.22 mi)
3:44:288:341.02 mi8:31
8:21
-1:54
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:36 /mi

Average Pace

8:34 /mi

Slowest Pace

18:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

52:31

23% of race

Time at Steady Pace

2:34:54

69% of race

Time at Slower Pace

17:03

8% of race

Average Pace: 8:34 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi11705296329631174130973097
10K3.10 mi11353+3522803+1602803+1601111627122712
15K3.11 mi11448-952891-882891-881174130973097
20K3.11 mi11101+3472720+1712720+1711025624662466
Half(13.11 mi)0.68 mi11062+392700+202700+201046025502550
25K2.42 mi11065-32759-592759-591129831223122
30K3.11 mi11551-4863117-3583117-3581355345954595
20M1.36 mi11647-963206-893206-891300845824582
21M1.00 mi11646+13275-693275-691207242984298
35K0.75 mi13608-19624412-11374412-1137254091087810878
23M1.25 mi13434+1744372+404372+401075837823782
24M1.00 mi13332+1024365+74365+71210244614461
40K0.85 mi13187+1454316+494316+491074439433943
25.2M0.35 mi13143+444313+34313+31192945604560
Finish(26.22 mi)1.02 mi13026+1174293+204293+201071538553855

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

11741

Females

3097

F18-39

3097

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

11116

Females

2712

F18-39

2712

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

11741

Females

3097

F18-39

3097

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

10256

Females

2466

F18-39

2466

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

10460

Females

2550

F18-39

2550

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

11298

Females

3122

F18-39

3122

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

13553

Females

4595

F18-39

4595

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

13008

Females

4582

F18-39

4582

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

12072

Females

4298

F18-39

4298

21M→35K

21.0 - 21.8 mi

Top 99%
×7story building
+17ft-86ft

Overall

25409

Females

10878

F18-39

10878

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

10758

Females

3782

F18-39

3782

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12102

Females

4461

F18-39

4461

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

10744

Females

3943

F18-39

3943

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

11929

Females

4560

F18-39

4560

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

10715

Females

3855

F18-39

3855

Passing Analysis

Category:
Passed
2497
Passed By
3818
Net Change
-1321
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11705
5K → 10K474122+352#11705#11353
10K → 15K180275-95#11353#11448
15K → 20K41467+347#11448#11101
20K → Half5415+39#11101#11062
Half → 25K223226-3#11062#11065
25K → 30K161647-486#11065#11551
30K → 20M112208-96#11551#11647
20M → 21M137136+1#11647#11646
21M → 35K31965-1962#11646#13608
35K → 23M21440+174#13608#13434
23M → 24M15149+102#13434#13332
24M → 40K16217+145#13332#13187
40K → 25.2M6016+44#13187#13143
25.2M → Finish15235+117#13143#13026
TOTALS24973818-1321

Passing Charts

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