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BOSTON MARATHON 2024

Takuya Aizawa

Bib: 12462•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 28%
Gender (Male)
#0 / 14578
Top 40%
Masters (Masters Men)
#0 / 9729
Top 29%
Division (M55-59)
#0 / 1529
Top 13%
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
7:24/mi
22:59
↑ 97↓ 3451.5%
10K· 6.21 mi
7:20/mi
45:45
↑ 79↓ 1380.4%
15K· 9.32 mi
7:20/mi
1:08:33
↑ 67↓ 78
20K· 12.43 mi
7:23/mi
1:31:30
↑ 106↓ 860.1%
Half· 13.11 mi
7:20/mi
1:36:30
↑ 19↓ 370.5%
25K· 15.53 mi
7:30/mi
1:54:41
↑ 66↓ 880.2%
30K· 18.64 mi
7:45/mi
2:18:45
↑ 181↓ 1480.2%
20M
7:54/mi
2:29:29
↑ 64↓ 500.2%
21M
8:31/mi
2:38:00
↑ 106↓ 241.6%
35K· 21.75 mi
7:56/mi
2:43:56
↑ 17↓ 861.7%
23M
8:30/mi
2:54:34
↑ 23↓ 630.6%
24M
8:26/mi
3:03:00
↓ 821.3%
40K· 24.85 mi
8:23/mi
3:10:10
↓ 200.3%
25.2M
9:14/mi
3:13:21
↑ 13↓ 160.2%
Finish· 26.22 mi
8:02/mi
3:21:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:30
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:45:02
Pace8:01 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:2122:597:2422:59
7:24
-
10K
6.21 mi11:14:0745:457:2222:46
7:20
-0:04
15K
9.32 mi11:36:551:08:337:2122:48
7:20
0:00
20K
12.43 mi11:59:521:31:307:2222:57
7:23
+0:03
Half
13.11 mi12:04:521:36:307:225:00
7:20
-0:03
25K
15.53 mi12:23:031:54:417:2318:11
7:30
+0:10
30K
18.64 mi12:47:072:18:457:2724:04
7:45
+0:15
20M
20.00 mi12:57:512:29:297:2810:44
7:54
+0:09
21M
21.00 mi13:06:222:38:007:318:31
8:31
+0:37
35K
21.75 mi13:12:182:43:567:325:56
7:56
-0:35
23M
23.00 mi13:22:562:54:347:3510:38
8:30
+0:34
24M
24.00 mi13:31:223:03:007:388:26
8:26
-0:04
40K
24.85 mi13:38:323:10:107:397:10
8:23
-0:03
25.2M
25.20 mi13:41:433:13:217:403:11
9:14
+0:51
Finish
26.22 mi13:49:543:21:327:428:11
8:02
-1:12

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

7:20 /mi

Average Pace

7:42 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:41

57% of race

Time at Steady Pace

48:55

24% of race

Time at Slower Pace

37:56

19% of race

Average Pace: 7:41 /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 mi10:51:2122:597:2422:59
7:24
#9893
10K
6.21 mi11:14:0745:457:2222:46
7:20
#9356
15K
9.32 mi11:36:551:08:337:2122:48
7:20
#9011
20K
12.43 mi11:59:521:31:307:2222:57
7:23
#8580
Half
13.11 mi12:04:521:36:307:225:00
7:20
#8538
25K
15.53 mi12:23:031:54:417:2318:11
7:30
#8194
30K
18.64 mi12:47:072:18:457:2724:04
7:45
#7728
20M
20.00 mi12:57:512:29:297:2810:44
7:54
#7539
21M
21.00 mi13:06:222:38:007:318:31
8:31
#7391
35K
21.75 mi13:12:182:43:567:325:56
7:56
#7336
23M
23.00 mi13:22:562:54:347:3510:38
8:30
#7320
24M
24.00 mi13:31:223:03:007:388:26
8:26
#7328
40K
24.85 mi13:38:323:10:107:397:10
8:23
#7289
25.2M
25.20 mi13:41:433:13:217:403:11
9:14
#7248
Finish
26.22 mi13:49:543:21:327:428:11
8:02
#7259
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi9893789678968410(Top 33%)6963(Top 48%)6963(Top 455%)
10K6.21 mi3.10 mi9356+5377577+3197577+3198872(Top 35%)7269(Top 50%)7269(Top 475%)
15K9.32 mi3.11 mi9011+3457352+2257352+2258410(Top 33%)6963(Top 48%)6963(Top 455%)
20K12.43 mi3.11 mi8580+4317070+2827070+2827535(Top 29%)6322(Top 43%)6322(Top 413%)
Half13.11 mi0.68 mi8538+427042+287042+287825(Top 31%)6510(Top 45%)6510(Top 426%)
25K15.53 mi2.42 mi8194+3446803+2396803+2396960(Top 27%)5792(Top 40%)5792(Top 379%)
30K18.64 mi3.11 mi7728+4666436+3676436+3676387(Top 25%)5257(Top 36%)5257(Top 344%)
20M20.00 mi1.36 mi7539+1896288+1486288+1486210(Top 24%)4982(Top 34%)4982(Top 326%)
21M21.00 mi1.00 mi7391+1486149+1396149+1396291(Top 25%)4858(Top 33%)4858(Top 318%)
35K21.75 mi0.75 mi7336+556083+666083+667326(Top 29%)5402(Top 37%)5402(Top 353%)
23M23.00 mi1.25 mi7320+166015+686015+688425(Top 33%)5810(Top 40%)5810(Top 380%)
24M24.00 mi1.00 mi7328-85977+385977+389018(Top 35%)6036(Top 41%)6036(Top 395%)
40K24.85 mi0.85 mi7289+395907+705907+707739(Top 30%)5239(Top 36%)5239(Top 343%)
25.2M25.20 mi0.35 mi7248+415860+475860+477570(Top 30%)5094(Top 35%)5094(Top 333%)
Finish26.22 mi1.02 mi7259-115828+325828+328687(Top 34%)5759(Top 40%)5759(Top 377%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

8410

Males

6963

M55-59

6963

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

8872

Males

7269

M55-59

7269

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

8410

Males

6963

M55-59

6963

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

7535

Males

6322

M55-59

6322

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

7825

Males

6510

M55-59

6510

Half→25K

13.1 - 15.5 mi

Top 27%
×4story building
+66ft-88ft

Overall

6960

Males

5792

M55-59

5792

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6387

Males

5257

M55-59

5257

30K→20M

18.6 - 20.0 mi

Top 24%
×5story building
+64ft-50ft

Overall

6210

Males

4982

M55-59

4982

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6291

Males

4858

M55-59

4858

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7326

Males

5402

M55-59

5402

35K→23M

21.8 - 23.0 mi

Top 33%
×5story building
+23ft-63ft

Overall

8425

Males

5810

M55-59

5810

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

9018

Males

6036

M55-59

6036

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

7739

Males

5239

M55-59

5239

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7570

Males

5094

M55-59

5094

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

8687

Males

5759

M55-59

5759

Passing Analysis

Category:
Athletes Passed
3334
Passed By
700
Net Change
+2634
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9893
5K → 10K58851+537#9893#9356
10K → 15K38742+345#9356#9011
15K → 20K45120+431#9011#8580
20K → Half5311+42#8580#8538
Half → 25K37935+344#8538#8194
25K → 30K50236+466#8194#7728
30K → 20M21526+189#7728#7539
20M → 21M19749+148#7539#7391
21M → 35K10045+55#7391#7336
35K → 23M138122+16#7336#7320
23M → 24M8896-8#7320#7328
24M → 40K9960+39#7328#7289
40K → 25.2M5716+41#7289#7248
25.2M → Finish8091-11#7248#7259
TOTALS3334700+2634
📊

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