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BOSTON MARATHON 2024

Sam Sivak

Bib: 8427•M

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M45-49)
#0 / 2218
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
8:58/mi
27:52
↑ 97↓ 3451.5%
10K· 6.21 mi
8:51/mi
55:22
↑ 79↓ 1380.4%
15K· 9.32 mi
9:17/mi
1:24:11
↑ 67↓ 78
20K· 12.43 mi
9:30/mi
1:53:42
↑ 106↓ 860.1%
Half· 13.11 mi
9:04/mi
1:59:53
↑ 19↓ 370.5%
25K· 15.53 mi
9:23/mi
2:22:39
↑ 66↓ 880.2%
30K· 18.64 mi
9:48/mi
2:53:07
↑ 181↓ 1480.2%
20M
10:03/mi
3:06:46
↑ 64↓ 500.2%
21M
11:35/mi
3:18:21
↑ 106↓ 241.6%
35K· 21.75 mi
9:36/mi
3:25:32
↑ 17↓ 861.7%
23M
10:37/mi
3:38:49
↑ 23↓ 630.6%
24M
9:34/mi
3:48:23
↓ 821.3%
40K· 24.85 mi
10:55/mi
3:57:43
↓ 200.3%
25.2M
10:15/mi
4:01:15
↑ 13↓ 160.2%
Finish· 26.22 mi
9:30/mi
4:10:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:53
Pace9:09 /mi
2nd Half
Distance13.11 mi
Time2:11:03
Pace10:00 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:1227:528:5827:52
8:58
-
10K
6.21 mi11:51:4255:228:5527:30
8:51
-0:07
15K
9.32 mi12:20:311:24:119:0228:49
9:17
+0:26
20K
12.43 mi12:50:021:53:429:0929:31
9:30
+0:13
Half
13.11 mi12:56:131:59:539:096:11
9:04
-0:26
25K
15.53 mi13:18:592:22:399:1122:46
9:23
+0:19
30K
18.64 mi13:49:272:53:079:1730:28
9:48
+0:25
20M
20.00 mi14:03:063:06:469:2013:39
10:03
+0:15
21M
21.00 mi14:14:413:18:219:2711:35
11:35
+1:32
35K
21.75 mi14:21:523:25:329:277:11
9:36
-1:59
23M
23.00 mi14:35:093:38:499:3113:17
10:37
+1:01
24M
24.00 mi14:44:433:48:239:319:34
9:34
-1:03
40K
24.85 mi14:54:033:57:439:349:20
10:55
+1:21
25.2M
25.20 mi14:57:354:01:159:343:32
10:15
-0:40
Finish
26.22 mi15:07:164:10:569:359:41
9:30
-0:45

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

8:51 /mi

Average Pace

9:35 /mi

Slowest Pace

11:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:33

25% of race

Time at Steady Pace

2:18:00

55% of race

Time at Slower Pace

51:23

20% of race

Average Pace: 9:34 /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 mi11:24:1227:528:5827:52
8:58
#19935
10K
6.21 mi11:51:4255:228:5527:30
8:51
#19521
15K
9.32 mi12:20:311:24:119:0228:49
9:17
#19691
20K
12.43 mi12:50:021:53:429:0929:31
9:30
#19553
Half
13.11 mi12:56:131:59:539:096:11
9:04
#19515
25K
15.53 mi13:18:592:22:399:1122:46
9:23
#19088
30K
18.64 mi13:49:272:53:079:1730:28
9:48
#18590
20M
20.00 mi14:03:063:06:469:2013:39
10:03
#18443
21M
21.00 mi14:14:413:18:219:2711:35
11:35
#18397
35K
21.75 mi14:21:523:25:329:277:11
9:36
#18288
23M
23.00 mi14:35:093:38:499:3113:17
10:37
#18196
24M
24.00 mi14:44:433:48:239:319:34
9:34
#18034
40K
24.85 mi14:54:033:57:439:349:20
10:55
#18023
25.2M
25.20 mi14:57:354:01:159:343:32
10:15
#17909
Finish
26.22 mi15:07:164:10:569:359:41
9:30
#17835
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi19935120411204119943(Top 78%)12144(Top 83%)12144(Top 548%)
10K6.21 mi3.10 mi19521+41411878+16311878+16319101(Top 75%)11709(Top 80%)11709(Top 528%)
15K9.32 mi3.11 mi19691-17011974-9611974-9619943(Top 78%)12144(Top 83%)12144(Top 548%)
20K12.43 mi3.11 mi19553+13811917+5711917+5719194(Top 75%)11775(Top 81%)11775(Top 531%)
Half13.11 mi0.68 mi19515+3811898+1911898+1918506(Top 72%)11394(Top 78%)11394(Top 514%)
25K15.53 mi2.42 mi19088+42711691+20711691+20717154(Top 67%)10754(Top 74%)10754(Top 485%)
30K18.64 mi3.11 mi18590+49811388+30311388+30316650(Top 65%)10290(Top 71%)10290(Top 464%)
20M20.00 mi1.36 mi18443+14711298+9011298+9016621(Top 65%)10060(Top 69%)10060(Top 454%)
21M21.00 mi1.00 mi18397+4611252+4611252+4617832(Top 70%)10541(Top 72%)10541(Top 475%)
35K21.75 mi0.75 mi18288+10911189+6311189+6315813(Top 62%)9520(Top 65%)9520(Top 429%)
23M23.00 mi1.25 mi18196+9211128+6111128+6117311(Top 68%)10206(Top 70%)10206(Top 460%)
24M24.00 mi1.00 mi18034+16211024+10411024+10414706(Top 58%)8865(Top 61%)8865(Top 400%)
40K24.85 mi0.85 mi18023+1110989+3510989+3517841(Top 70%)10364(Top 71%)10364(Top 467%)
25.2M25.20 mi0.35 mi17909+11410925+6410925+6411828(Top 46%)7266(Top 50%)7266(Top 328%)
Finish26.22 mi1.02 mi17835+7410867+5810867+5816519(Top 65%)9701(Top 67%)9701(Top 437%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

19943

Males

12144

M45-49

12144

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

19101

Males

11709

M45-49

11709

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

19943

Males

12144

M45-49

12144

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

19194

Males

11775

M45-49

11775

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

18506

Males

11394

M45-49

11394

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17154

Males

10754

M45-49

10754

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

16650

Males

10290

M45-49

10290

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

16621

Males

10060

M45-49

10060

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

17832

Males

10541

M45-49

10541

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

15813

Males

9520

M45-49

9520

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

17311

Males

10206

M45-49

10206

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

14706

Males

8865

M45-49

8865

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

17841

Males

10364

M45-49

10364

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

11828

Males

7266

M45-49

7266

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

16519

Males

9701

M45-49

9701

Passing Analysis

Category:
Athletes Passed
3024
Passed By
924
Net Change
+2100
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19935
5K → 10K515101+414#19935#19521
10K → 15K169339-170#19521#19691
15K → 20K294156+138#19691#19553
20K → Half5416+38#19553#19515
Half → 25K45225+427#19515#19088
25K → 30K53436+498#19088#18590
30K → 20M18033+147#18590#18443
20M → 21M11468+46#18443#18397
21M → 35K1178+109#18397#18288
35K → 23M13442+92#18288#18196
23M → 24M17311+162#18196#18034
24M → 40K6958+11#18034#18023
40K → 25.2M1151+114#18023#17909
25.2M → Finish10430+74#17909#17835
TOTALS3024924+2100
📊

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