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BOSTON MARATHON 2024

Seiichi Nakajima

Bib: 11741•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 40%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 41%
Division (M50-54)
#0 / 1935
Top 43%
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
7:22/mi
22:52
↑ 97↓ 3451.5%
10K· 6.21 mi
7:26/mi
45:57
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:08:55
↑ 67↓ 78
20K· 12.43 mi
7:36/mi
1:32:31
↑ 106↓ 860.1%
Half· 13.11 mi
7:23/mi
1:37:33
↑ 19↓ 370.5%
25K· 15.53 mi
7:39/mi
1:56:06
↑ 66↓ 880.2%
30K· 18.64 mi
8:00/mi
2:20:56
↑ 181↓ 1480.2%
20M
8:40/mi
2:32:42
↑ 64↓ 500.2%
21M
9:31/mi
2:42:13
↑ 106↓ 241.6%
35K· 21.75 mi
8:31/mi
2:48:35
↑ 17↓ 861.7%
23M
9:33/mi
3:00:32
↑ 23↓ 630.6%
24M
10:38/mi
3:11:10
↓ 821.3%
40K· 24.85 mi
9:51/mi
3:19:35
↓ 200.3%
25.2M
10:03/mi
3:23:03
↑ 13↓ 160.2%
Finish· 26.22 mi
9:03/mi
3:32:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:33
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:54:43
Pace8:45 /mi
📊Positive Split: 17.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2322:527:2222:52
7:22
-
10K
6.21 mi11:13:2845:577:2423:05
7:26
+0:04
15K
9.32 mi11:36:261:08:557:2422:58
7:24
-0:02
20K
12.43 mi12:00:021:32:317:2723:36
7:36
+0:12
Half
13.11 mi12:05:041:37:337:265:02
7:23
-0:13
25K
15.53 mi12:23:371:56:067:2818:33
7:39
+0:16
30K
18.64 mi12:48:272:20:567:3424:50
8:00
+0:21
20M
20.00 mi13:00:132:32:427:3811:46
8:40
+0:40
21M
21.00 mi13:09:442:42:137:439:31
9:31
+0:51
35K
21.75 mi13:16:062:48:357:456:22
8:31
-1:00
23M
23.00 mi13:28:033:00:327:5111:57
9:33
+1:02
24M
24.00 mi13:38:413:11:107:5810:38
10:38
+1:05
40K
24.85 mi13:47:063:19:358:028:25
9:51
-0:47
25.2M
25.20 mi13:50:343:23:038:033:28
10:03
+0:12
Finish
26.22 mi13:59:473:32:168:069:13
9:03
-1:00

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

7:22 /mi

Average Pace

8:06 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:06

55% of race

Time at Steady Pace

52:11

25% of race

Time at Slower Pace

43:59

21% of race

Average Pace: 8:06 /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 mi10:50:2322:527:2222:52
7:22
#9631
10K
6.21 mi11:13:2845:577:2423:05
7:26
#9598
15K
9.32 mi11:36:261:08:557:2422:58
7:24
#9297
20K
12.43 mi12:00:021:32:317:2723:36
7:36
#9207
Half
13.11 mi12:05:041:37:337:265:02
7:23
#9137
25K
15.53 mi12:23:371:56:067:2818:33
7:39
#8888
30K
18.64 mi12:48:272:20:567:3424:50
8:00
#8561
20M
20.00 mi13:00:132:32:427:3811:46
8:40
#8656
21M
21.00 mi13:09:442:42:137:439:31
9:31
#8726
35K
21.75 mi13:16:062:48:357:456:22
8:31
#8758
23M
23.00 mi13:28:033:00:327:5111:57
9:33
#9022
24M
24.00 mi13:38:413:11:107:5810:38
10:38
#9674
40K
24.85 mi13:47:063:19:358:028:25
9:51
#9920
25.2M
25.20 mi13:50:343:23:038:033:28
10:03
#9921
Finish
26.22 mi13:59:473:32:168:069:13
9:03
#10101
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi9631775677568830(Top 35%)7197(Top 49%)7197(Top 372%)
10K6.21 mi3.10 mi9598+337712+447712+449649(Top 38%)7686(Top 53%)7686(Top 397%)
15K9.32 mi3.11 mi9297+3017523+1897523+1898830(Top 35%)7197(Top 49%)7197(Top 372%)
20K12.43 mi3.11 mi9207+907424+997424+999043(Top 35%)7198(Top 49%)7198(Top 372%)
Half13.11 mi0.68 mi9137+707376+487376+488205(Top 32%)6753(Top 46%)6753(Top 349%)
25K15.53 mi2.42 mi8888+2497205+1717205+1717971(Top 31%)6414(Top 44%)6414(Top 331%)
30K18.64 mi3.11 mi8561+3276930+2756930+2757827(Top 31%)6106(Top 42%)6106(Top 316%)
20M20.00 mi1.36 mi8656-956922+86922+810306(Top 40%)7184(Top 49%)7184(Top 371%)
21M21.00 mi1.00 mi8726-706895+276895+2710900(Top 43%)7177(Top 49%)7177(Top 371%)
35K21.75 mi0.75 mi8758-326876+196876+1910775(Top 42%)7115(Top 49%)7115(Top 368%)
23M23.00 mi1.25 mi9022-2646955-796955-7913694(Top 54%)8397(Top 58%)8397(Top 434%)
24M24.00 mi1.00 mi9674-6527234-2797234-27918226(Top 71%)10605(Top 73%)10605(Top 548%)
40K24.85 mi0.85 mi9920-2467328-947328-9414417(Top 56%)8647(Top 59%)8647(Top 447%)
25.2M25.20 mi0.35 mi9921-17311+177311+1711110(Top 43%)6935(Top 48%)6935(Top 358%)
Finish26.22 mi1.02 mi10101-1807357-467357-4614394(Top 56%)8686(Top 60%)8686(Top 449%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

8830

Males

7197

M50-54

7197

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

9649

Males

7686

M50-54

7686

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

8830

Males

7197

M50-54

7197

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9043

Males

7198

M50-54

7198

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8205

Males

6753

M50-54

6753

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

7971

Males

6414

M50-54

6414

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

7827

Males

6106

M50-54

6106

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10306

Males

7184

M50-54

7184

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

10900

Males

7177

M50-54

7177

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

10775

Males

7115

M50-54

7115

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

13694

Males

8397

M50-54

8397

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

18226

Males

10605

M50-54

10605

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

14417

Males

8647

M50-54

8647

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11110

Males

6935

M50-54

6935

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

14394

Males

8686

M50-54

8686

Passing Analysis

Category:
Athletes Passed
2174
Passed By
2643
Net Change
-470
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9631
5K → 10K268235+33#9631#9598
10K → 15K35756+301#9598#9297
15K → 20K251161+90#9297#9207
20K → Half788+70#9207#9137
Half → 25K31465+249#9137#8888
25K → 30K436109+327#8888#8561
30K → 20M109204-95#8561#8656
20M → 21M98168-70#8656#8726
21M → 35K5890-32#8726#8758
35K → 23M87351-264#8758#9022
23M → 24M13665-652#9022#9674
24M → 40K26272-246#9674#9920
40K → 25.2M4243-1#9920#9921
25.2M → Finish37216-180#9921#10101
TOTALS21742643-470
📊

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