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BOSTON MARATHON 2024

Masaru Isoda

Bib: 9045•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 39%
Gender (Male)
#0 / 14578
Top 50%
Masters (Masters Men)
#0 / 9729
Top 41%
Division (M50-54)
#0 / 1935
Top 42%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:19
Rank: #6131
Start → 5K
21:19 | 6:52/mi
10K· 6.21 mi
42:37
Rank: #5862 (+269)
5K → 10K
21:18 | 6:51/mi
15K· 9.32 mi
1:04:01
Rank: #5716 (+146)
10K → 15K
21:24 | 6:53/mi
20K· 12.43 mi
1:26:05
Rank: #5715 (+1)
15K → 20K
22:04 | 7:06/mi
Half· 13.11 mi
1:30:56
Rank: #5746 (-31)
20K → Half
4:51 | 7:06/mi
25K· 15.53 mi
1:50:44
Rank: #6512 (-766)
Half → 25K
19:48 | 8:10/mi
30K· 18.64 mi
2:18:13
Rank: #7553 (-1041)
25K → 30K
27:29 | 8:51/mi
20M
2:31:59
Rank: #8414 (-861)
30K → 20M
13:46 | 10:08/mi
21M
2:43:02
Rank: #8987 (-573)
20M → 21M
11:03 | 11:03/mi
35K· 21.75 mi
2:49:40
Rank: #9097 (-110)
21M → 35K
6:38 | 8:52/mi
23M
3:02:22
Rank: #9618 (-521)
35K → 23M
12:42 | 10:09/mi
24M
3:11:24
Rank: #9739 (-121)
23M → 24M
9:02 | 9:02/mi
40K· 24.85 mi
3:19:42
Rank: #9954 (-215)
24M → 40K
8:18 | 9:42/mi
25.2M
3:23:51
Rank: #10134 (-180)
40K → 25.2M
4:09 | 12:02/mi
Finish· 26.22 mi
3:31:39
Rank: #9955 (+179)
25.2M → Finish
7:48 | 7:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:56
Pace6:56 /mi
2nd Half
Distance13.11 mi
Time2:00:43
Pace9:13 /mi
📊Positive Split: 32.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:5521:196:5221:19
6:52
-
10K
6.21 mi11:12:1342:376:5221:18
6:51
-0:01
15K
9.32 mi11:33:371:04:016:5221:24
6:53
+0:02
20K
12.43 mi11:55:411:26:056:5622:04
7:06
+0:13
Half
13.11 mi12:00:321:30:566:564:51
7:06
0:00
25K
15.53 mi12:20:201:50:447:0819:48
8:10
+1:04
30K
18.64 mi12:47:492:18:137:2527:29
8:51
+0:41
20M
20.00 mi13:01:352:31:597:3613:46
10:08
+1:17
21M
21.00 mi13:12:382:43:027:4611:03
11:03
+0:55
35K
21.75 mi13:19:162:49:407:486:38
8:52
-2:11
23M
23.00 mi13:31:583:02:227:5612:42
10:09
+1:17
24M
24.00 mi13:41:003:11:247:599:02
9:02
-1:07
40K
24.85 mi13:49:183:19:428:028:18
9:42
+0:40
25.2M
25.20 mi13:53:273:23:518:054:09
12:02
+2:20
Finish
26.22 mi14:01:153:31:398:057:48
7:39
-4:23

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

6:51 /mi

Average Pace

8:05 /mi

Slowest Pace

12:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:44

47% of race

Time at Steady Pace

1:02:57

30% of race

Time at Slower Pace

49:58

24% of race

Average Pace: 8:04 /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 mi10:50:5521:196:5221:19
6:52
#6131
10K
6.21 mi11:12:1342:376:5221:18
6:51
#5862
15K
9.32 mi11:33:371:04:016:5221:24
6:53
#5716
20K
12.43 mi11:55:411:26:056:5622:04
7:06
#5715
Half
13.11 mi12:00:321:30:566:564:51
7:06
#5746
25K
15.53 mi12:20:201:50:447:0819:48
8:10
#6512
30K
18.64 mi12:47:492:18:137:2527:29
8:51
#7553
20M
20.00 mi13:01:352:31:597:3613:46
10:08
#8414
21M
21.00 mi13:12:382:43:027:4611:03
11:03
#8987
35K
21.75 mi13:19:162:49:407:486:38
8:52
#9097
23M
23.00 mi13:31:583:02:227:5612:42
10:09
#9618
24M
24.00 mi13:41:003:11:247:599:02
9:02
#9739
40K
24.85 mi13:49:183:19:428:028:18
9:42
#9954
25.2M
25.20 mi13:53:273:23:518:054:09
12:02
#10134
Finish
26.22 mi14:01:153:31:398:057:48
7:39
#9955
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi6131555355535471(Top 21%)4988(Top 34%)4988(Top 258%)
10K6.21 mi3.10 mi5862+2695332+2215332+2215675(Top 22%)5175(Top 35%)5175(Top 267%)
15K9.32 mi3.11 mi5716+1465215+1175215+1175471(Top 21%)4988(Top 34%)4988(Top 258%)
20K12.43 mi3.11 mi5715+15180+355180+355823(Top 23%)5187(Top 36%)5187(Top 268%)
Half13.11 mi0.68 mi5746-315202-225202-226334(Top 25%)5532(Top 38%)5532(Top 286%)
25K15.53 mi2.42 mi6512-7665721-5195721-51911155(Top 44%)8082(Top 55%)8082(Top 418%)
30K18.64 mi3.11 mi7553-10416340-6196340-61912419(Top 49%)8436(Top 58%)8436(Top 436%)
20M20.00 mi1.36 mi8414-8616778-4386778-43816888(Top 66%)10188(Top 70%)10188(Top 527%)
21M21.00 mi1.00 mi8987-5737029-2517029-25116454(Top 64%)9835(Top 67%)9835(Top 508%)
35K21.75 mi0.75 mi9097-1107064-357064-3512640(Top 49%)7993(Top 55%)7993(Top 413%)
23M23.00 mi1.25 mi9618-5217257-1937257-19315915(Top 62%)9523(Top 65%)9523(Top 492%)
24M24.00 mi1.00 mi9739-1217271-147271-1412309(Top 48%)7700(Top 53%)7700(Top 398%)
40K24.85 mi0.85 mi9954-2157349-787349-7813888(Top 54%)8370(Top 57%)8370(Top 433%)
25.2M25.20 mi0.35 mi10134-1807407-587407-5817378(Top 68%)10099(Top 69%)10099(Top 522%)
Finish26.22 mi1.02 mi9955+1797278+1297278+1296464(Top 25%)4587(Top 31%)4587(Top 237%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5471

Males

4988

M50-54

4988

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

5675

Males

5175

M50-54

5175

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5471

Males

4988

M50-54

4988

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

5823

Males

5187

M50-54

5187

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

6334

Males

5532

M50-54

5532

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

11155

Males

8082

M50-54

8082

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

12419

Males

8436

M50-54

8436

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

16888

Males

10188

M50-54

10188

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

16454

Males

9835

M50-54

9835

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

12640

Males

7993

M50-54

7993

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

15915

Males

9523

M50-54

9523

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

12309

Males

7700

M50-54

7700

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

13888

Males

8370

M50-54

8370

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

17378

Males

10099

M50-54

10099

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6464

Males

4587

M50-54

4587

Passing Analysis

Category:
Athletes Passed
1236*
Passed By
5057
Net Change
-3824
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6131
5K → 10K33667+269#6131#5862
10K → 15K21973+146#5862#5716
15K → 20K170169+1#5716#5715
20K → Half1243-31#5715#5746
Half → 25K25791-766#5746#6512
25K → 30K391080-1041#6512#7553
30K → 20M14875-861#7553#8414
20M → 21M24597-573#8414#8987
21M → 35K46156-110#8987#9097
35K → 23M49569-521#9097#9618
23M → 24M73*194-121#9618#9739
24M → 40K33248-215#9739#9954
40K → 25.2M8186-180#9954#10134
25.2M → Finish188*9+179#10134#9955
TOTALS1236*5057-3824

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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