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BOSTON MARATHON 2024

Naomi Nagano

Bib: 23121•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F60-64)
#0 / 549
Top 24%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:17
Rank: #19204
Start → 5K
8:47/mi
27:17 split
10K· 6.21 mi
54:15
Rank: #18765 (+439)
5K → 10K
8:41/mi
26:58 split
15K· 9.32 mi
1:21:25
Rank: #18359 (+406)
10K → 15K
8:45/mi
27:10 split
20K· 12.43 mi
1:48:50
Rank: #17816 (+543)
15K → 20K
8:49/mi
27:25 split
Half· 13.11 mi
1:54:59
Rank: #17835 (-19)
20K → Half
9:01/mi
6:09 split
25K· 15.53 mi
2:19:08
Rank: #18099 (-264)
Half → 25K
9:58/mi
24:09 split
30K· 18.64 mi
2:51:29
Rank: #18250 (-151)
25K → 30K
10:25/mi
32:21 split
20M
3:05:41
Rank: #18231 (+19)
30K → 20M
10:27/mi
14:12 split
21M
3:17:13
Rank: #18217 (+14)
20M → 21M
11:32/mi
11:32 split
35K· 21.75 mi
3:24:53
Rank: #18185 (+32)
21M → 35K
10:15/mi
7:40 split
23M
3:37:51
Rank: #18049 (+136)
35K → 23M
10:21/mi
12:58 split
24M
3:47:50
Rank: #17958 (+91)
23M → 24M
9:59/mi
9:59 split
40K· 24.85 mi
3:55:44
Rank: #17745 (+213)
24M → 40K
9:14/mi
7:54 split
25.2M
3:59:28
Rank: #17665 (+80)
40K → 25.2M
10:50/mi
3:44 split
Finish· 26.22 mi
4:07:52
Rank: #17407 (+258)
25.2M → Finish
8:15/mi
8:24 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:59
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:12:53
Pace10:08 /mi
📊Positive Split: 15.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:4727:178:4727:17
8:47
-
10K
6.21 mi11:54:4554:158:4426:58
8:41
-0:06
15K
9.32 mi12:21:551:21:258:4427:10
8:45
+0:04
20K
12.43 mi12:49:201:48:508:4527:25
8:49
+0:04
Half
13.11 mi12:55:291:54:598:466:09
9:01
+0:12
25K
15.53 mi13:19:382:19:088:5724:09
9:58
+0:57
30K
18.64 mi13:51:592:51:299:1232:21
10:25
+0:27
20M
20.00 mi14:06:113:05:419:1714:12
10:27
+0:02
21M
21.00 mi14:17:433:17:139:2311:32
11:32
+1:05
35K
21.75 mi14:25:233:24:539:257:40
10:15
-1:17
23M
23.00 mi14:38:213:37:519:2812:58
10:21
+0:06
24M
24.00 mi14:48:203:47:509:309:59
9:59
-0:22
40K
24.85 mi14:56:143:55:449:297:54
9:14
-0:45
25.2M
25.20 mi14:59:583:59:289:303:44
10:50
+1:36
Finish
26.22 mi15:08:224:07:529:288:24
8:15
-2:35

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

8:15 /mi

Average Pace

9:28 /mi

Slowest Pace

11:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:17

53% of race

Time at Steady Pace

1:27:07

35% of race

Time at Slower Pace

29:28

12% of race

Average Pace: 9:27 /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 mi11:27:4727:178:4727:17
8:47
#19204
10K
6.21 mi11:54:4554:158:4426:58
8:41
#18765
15K
9.32 mi12:21:551:21:258:4427:10
8:45
#18359
20K
12.43 mi12:49:201:48:508:4527:25
8:49
#17816
Half
13.11 mi12:55:291:54:598:466:09
9:01
#17835
25K
15.53 mi13:19:382:19:088:5724:09
9:58
#18099
30K
18.64 mi13:51:592:51:299:1232:21
10:25
#18250
20M
20.00 mi14:06:113:05:419:1714:12
10:27
#18231
21M
21.00 mi14:17:433:17:139:2311:32
11:32
#18217
35K
21.75 mi14:25:233:24:539:257:40
10:15
#18185
23M
23.00 mi14:38:213:37:519:2812:58
10:21
#18049
24M
24.00 mi14:48:203:47:509:309:59
9:59
#17958
40K
24.85 mi14:56:143:55:449:297:54
9:14
#17745
25.2M
25.20 mi14:59:583:59:289:303:44
10:50
#17665
Finish
26.22 mi15:08:224:07:529:288:24
8:15
#17407
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi192047472747217713(Top 69%)6550(Top 60%)6550(Top 1193%)
10K6.21 mi3.10 mi18765+4397196+2767196+27618259(Top 71%)6874(Top 63%)6874(Top 1252%)
15K9.32 mi3.11 mi18359+4066945+2516945+25117713(Top 69%)6550(Top 60%)6550(Top 1193%)
20K12.43 mi3.11 mi17816+5436640+3056640+30516537(Top 65%)5920(Top 54%)5920(Top 1078%)
Half13.11 mi0.68 mi17835-196652-126652-1218363(Top 72%)6980(Top 64%)6980(Top 1271%)
25K15.53 mi2.42 mi18099-2646820-1686820-16819009(Top 74%)7371(Top 67%)7371(Top 1343%)
30K18.64 mi3.11 mi18250-1516975-1556975-15518559(Top 73%)7336(Top 67%)7336(Top 1336%)
20M20.00 mi1.36 mi18231+196987-126987-1217844(Top 70%)7130(Top 65%)7130(Top 1299%)
21M21.00 mi1.00 mi18217+146998-116998-1117749(Top 69%)7210(Top 66%)7210(Top 1313%)
35K21.75 mi0.75 mi18185+327001-37001-317892(Top 70%)7278(Top 67%)7278(Top 1326%)
23M23.00 mi1.25 mi18049+1366953+486953+4816608(Top 65%)6711(Top 61%)6711(Top 1222%)
24M24.00 mi1.00 mi17958+916931+226931+2216301(Top 64%)6598(Top 60%)6598(Top 1202%)
40K24.85 mi0.85 mi17745+2136842+896842+8912009(Top 47%)4556(Top 42%)4556(Top 830%)
25.2M25.20 mi0.35 mi17665+806810+326810+3213970(Top 55%)5566(Top 51%)5566(Top 1014%)
Finish26.22 mi1.02 mi17407+2586701+1096701+10910039(Top 39%)3552(Top 33%)3552(Top 647%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

17713

Females

6550

F60-64

6550

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

18259

Females

6874

F60-64

6874

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

17713

Females

6550

F60-64

6550

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

16537

Females

5920

F60-64

5920

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

18363

Females

6980

F60-64

6980

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19009

Females

7371

F60-64

7371

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

18559

Females

7336

F60-64

7336

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

17844

Females

7130

F60-64

7130

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

17749

Females

7210

F60-64

7210

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

17892

Females

7278

F60-64

7278

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

16608

Females

6711

F60-64

6711

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

16301

Females

6598

F60-64

6598

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12009

Females

4556

F60-64

4556

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

13970

Females

5566

F60-64

5566

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

10039

Females

3552

F60-64

3552

Passing Analysis

Category:
Athletes Passed
3064
Passed By
1267
Net Change
+1797
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19204
5K → 10K541102+439#19204#18765
10K → 15K46155+406#18765#18359
15K → 20K57128+543#18359#17816
20K → Half3857-19#17816#17835
Half → 25K128392-264#17835#18099
25K → 30K207358-151#18099#18250
30K → 20M11091+19#18250#18231
20M → 21M10894+14#18231#18217
21M → 35K6836+32#18217#18185
35K → 23M16731+136#18185#18049
23M → 24M10918+91#18049#17958
24M → 40K2130+213#17958#17745
40K → 25.2M855+80#17745#17665
25.2M → Finish2580+258#17665#17407
TOTALS30641267+1797
📊

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