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BOSTON MARATHON 2024

Jos Keijzers

Bib: 27937•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M50-54)
#0 / 1935
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
8:38/mi
26:49
↑ 97↓ 3451.5%
10K· 6.21 mi
8:51/mi
54:20
↑ 79↓ 1380.4%
15K· 9.32 mi
9:07/mi
1:22:40
↑ 67↓ 78
20K· 12.43 mi
9:01/mi
1:50:40
↑ 106↓ 860.1%
Half· 13.11 mi
8:33/mi
1:56:30
↑ 19↓ 370.5%
25K· 15.53 mi
9:30/mi
2:19:31
↑ 66↓ 880.2%
30K· 18.64 mi
9:56/mi
2:50:24
↑ 181↓ 1480.2%
20M
9:24/mi
3:03:11
↑ 64↓ 500.2%
21M
10:35/mi
3:13:46
↑ 106↓ 241.6%
35K· 21.75 mi
9:37/mi
3:20:58
↑ 17↓ 861.7%
23M
12:18/mi
3:36:22
↑ 23↓ 630.6%
24M
11:35/mi
3:47:57
↓ 821.3%
40K· 24.85 mi
12:59/mi
3:59:03
↓ 200.3%
25.2M
12:19/mi
4:03:18
↑ 13↓ 160.2%
Finish· 26.22 mi
9:50/mi
4:13:19
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:30
Pace8:53 /mi
2nd Half
Distance13.11 mi
Time2:16:49
Pace10:26 /mi
📊Positive Split: 17.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:4426:498:3826:49
8:38
-
10K
6.21 mi12:13:1554:208:4527:31
8:51
+0:13
15K
9.32 mi12:41:351:22:408:5228:20
9:07
+0:16
20K
12.43 mi13:09:351:50:408:5428:00
9:01
-0:06
Half
13.11 mi13:15:251:56:308:535:50
8:33
-0:28
25K
15.53 mi13:38:262:19:318:5923:01
9:30
+0:57
30K
18.64 mi14:09:192:50:249:0830:53
9:56
+0:26
20M
20.00 mi14:22:063:03:119:1012:47
9:24
-0:32
21M
21.00 mi14:32:413:13:469:1410:35
10:35
+1:11
35K
21.75 mi14:39:533:20:589:147:12
9:37
-0:58
23M
23.00 mi14:55:173:36:229:2415:24
12:18
+2:41
24M
24.00 mi15:06:523:47:579:3011:35
11:35
-0:43
40K
24.85 mi15:17:583:59:039:3711:06
12:59
+1:24
25.2M
25.20 mi15:22:134:03:189:394:15
12:19
-0:40
Finish
26.22 mi15:32:144:13:199:4010:01
9:50
-2:29

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

8:33 /mi

Average Pace

9:40 /mi

Slowest Pace

12:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:00:10

24% of race

Time at Steady Pace

2:20:14

55% of race

Time at Slower Pace

52:55

21% of race

Average Pace: 9:40 /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 mi11:45:4426:498:3826:49
8:38
#18483
10K
6.21 mi12:13:1554:208:4527:31
8:51
#18825
15K
9.32 mi12:41:351:22:408:5228:20
9:07
#18989
20K
12.43 mi13:09:351:50:408:5428:00
9:01
#18523
Half
13.11 mi13:15:251:56:308:535:50
8:33
#18394
25K
15.53 mi13:38:262:19:318:5923:01
9:30
#18206
30K
18.64 mi14:09:192:50:249:0830:53
9:56
#18009
20M
20.00 mi14:22:063:03:119:1012:47
9:24
#17710
21M
21.00 mi14:32:413:13:469:1410:35
10:35
#17561
35K
21.75 mi14:39:533:20:589:147:12
9:37
#17476
23M
23.00 mi14:55:173:36:229:2415:24
12:18
#17819
24M
24.00 mi15:06:523:47:579:3011:35
11:35
#17976
40K
24.85 mi15:17:583:59:039:3711:06
12:59
#18192
25.2M
25.20 mi15:22:134:03:189:394:15
12:19
#18185
Finish
26.22 mi15:32:144:13:199:4010:01
9:50
#18148
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi18483113981139819404(Top 76%)11894(Top 82%)11894(Top 615%)
10K6.21 mi3.10 mi18825-34211552-15411552-15419131(Top 75%)11728(Top 80%)11728(Top 606%)
15K9.32 mi3.11 mi18989-16411654-10211654-10219404(Top 76%)11894(Top 82%)11894(Top 615%)
20K12.43 mi3.11 mi18523+46611456+19811456+19817379(Top 68%)10985(Top 75%)10985(Top 568%)
Half13.11 mi0.68 mi18394+12911398+5811398+5815995(Top 63%)10344(Top 71%)10344(Top 535%)
25K15.53 mi2.42 mi18206+18811282+11611282+11617540(Top 69%)10947(Top 75%)10947(Top 566%)
30K18.64 mi3.11 mi18009+19711135+14711135+14717161(Top 67%)10526(Top 72%)10526(Top 544%)
20M20.00 mi1.36 mi17710+29910971+16410971+16414102(Top 55%)8904(Top 61%)8904(Top 460%)
21M21.00 mi1.00 mi17561+14910887+8410887+8415099(Top 59%)9196(Top 63%)9196(Top 475%)
35K21.75 mi0.75 mi17476+8510823+6410823+6415924(Top 62%)9588(Top 66%)9588(Top 496%)
23M23.00 mi1.25 mi17819-34310945-12210945-12221323(Top 83%)12235(Top 84%)12235(Top 632%)
24M24.00 mi1.00 mi17976-15710996-5110996-5120593(Top 81%)11821(Top 81%)11821(Top 611%)
40K24.85 mi0.85 mi18192-21611073-7711073-7722237(Top 87%)12622(Top 87%)12622(Top 652%)
25.2M25.20 mi0.35 mi18185+711058+1511058+1518082(Top 71%)10475(Top 72%)10475(Top 541%)
Finish26.22 mi1.02 mi18148+3711014+4411014+4417816(Top 70%)10365(Top 71%)10365(Top 536%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

19404

Males

11894

M50-54

11894

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

19131

Males

11728

M50-54

11728

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

19404

Males

11894

M50-54

11894

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

17379

Males

10985

M50-54

10985

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

15995

Males

10344

M50-54

10344

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

17540

Males

10947

M50-54

10947

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17161

Males

10526

M50-54

10526

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

14102

Males

8904

M50-54

8904

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15099

Males

9196

M50-54

9196

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

15924

Males

9588

M50-54

9588

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

21323

Males

12235

M50-54

12235

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

20593

Males

11821

M50-54

11821

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

22237

Males

12622

M50-54

12622

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

18082

Males

10475

M50-54

10475

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

17816

Males

10365

M50-54

10365

Passing Analysis

Category:
Athletes Passed
2423
Passed By
2088
Net Change
+335
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18483
5K → 10K172514-342#18483#18825
10K → 15K156320-164#18825#18989
15K → 20K51852+466#18989#18523
20K → Half1312+129#18523#18394
Half → 25K300112+188#18394#18206
25K → 30K345148+197#18206#18009
30K → 20M3089+299#18009#17710
20M → 21M17526+149#17710#17561
21M → 35K10419+85#17561#17476
35K → 23M38381-343#17476#17819
23M → 24M33190-157#17819#17976
24M → 40K22238-216#17976#18192
40K → 25.2M3629+7#18192#18185
25.2M → Finish8548+37#18185#18148
TOTALS24232088+335
📊

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