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BOSTON MARATHON 2024

Alfredo Contreras

Bib: 28318•M

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
9:02/mi
28:05
↑ 97↓ 3451.5%
10K· 6.21 mi
8:45/mi
55:16
↑ 79↓ 1380.4%
15K· 9.32 mi
8:34/mi
1:21:52
↑ 67↓ 78
20K· 12.43 mi
8:33/mi
1:48:26
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:54:04
↑ 19↓ 370.5%
25K· 15.53 mi
8:47/mi
2:15:22
↑ 66↓ 880.2%
30K· 18.64 mi
9:10/mi
2:43:52
↑ 181↓ 1480.2%
20M
9:15/mi
2:56:26
↑ 64↓ 500.2%
21M
9:57/mi
3:06:23
↑ 106↓ 241.6%
35K· 21.75 mi
8:28/mi
3:12:43
↑ 17↓ 861.7%
23M
8:53/mi
3:23:50
↑ 23↓ 630.6%
24M
8:50/mi
3:32:40
↓ 821.3%
40K· 24.85 mi
9:04/mi
3:40:25
↓ 200.3%
25.2M
10:18/mi
3:43:58
↑ 13↓ 160.2%
Finish· 26.22 mi
9:09/mi
3:53:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:04
Pace8:42 /mi
2nd Half
Distance13.11 mi
Time1:59:13
Pace9:06 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:4528:059:0228:05
9:02
-
10K
6.21 mi12:21:5655:168:5427:11
8:45
-0:17
15K
9.32 mi12:48:321:21:528:4726:36
8:34
-0:11
20K
12.43 mi13:15:061:48:268:4426:34
8:33
-0:01
Half
13.11 mi13:20:441:54:048:425:38
8:15
-0:18
25K
15.53 mi13:42:022:15:228:4321:18
8:47
+0:32
30K
18.64 mi14:10:322:43:528:4728:30
9:10
+0:23
20M
20.00 mi14:23:062:56:268:4912:34
9:15
+0:05
21M
21.00 mi14:33:033:06:238:539:57
9:57
+0:42
35K
21.75 mi14:39:233:12:438:526:20
8:28
-1:29
23M
23.00 mi14:50:303:23:508:5211:07
8:53
+0:25
24M
24.00 mi14:59:203:32:408:528:50
8:50
-0:03
40K
24.85 mi15:07:053:40:258:527:45
9:04
+0:14
25.2M
25.20 mi15:10:383:43:588:533:33
10:18
+1:14
Finish
26.22 mi15:19:573:53:178:549:19
9:09
-1:09

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

8:15 /mi

Average Pace

8:54 /mi

Slowest Pace

10:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:05:08

28% of race

Time at Steady Pace

1:44:16

45% of race

Time at Slower Pace

1:03:53

27% of race

Average Pace: 8:54 /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 mi11:54:4528:059:0228:05
9:02
#20228
10K
6.21 mi12:21:5655:168:5427:11
8:45
#19461
15K
9.32 mi12:48:321:21:528:4726:36
8:34
#18619
20K
12.43 mi13:15:061:48:268:4426:34
8:33
#17645
Half
13.11 mi13:20:441:54:048:425:38
8:15
#17453
25K
15.53 mi13:42:022:15:228:4321:18
8:47
#16902
30K
18.64 mi14:10:322:43:528:4728:30
9:10
#16353
20M
20.00 mi14:23:062:56:268:4912:34
9:15
#16135
21M
21.00 mi14:33:033:06:238:539:57
9:57
#15931
35K
21.75 mi14:39:233:12:438:526:20
8:28
#15746
23M
23.00 mi14:50:303:23:508:5211:07
8:53
#15417
24M
24.00 mi14:59:203:32:408:528:50
8:50
#15246
40K
24.85 mi15:07:053:40:258:527:45
9:04
#15035
25.2M
25.20 mi15:10:383:43:588:533:33
10:18
#14960
Finish
26.22 mi15:19:573:53:178:549:19
9:09
#14958
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi20228121861218616716(Top 65%)10696(Top 73%)10696(Top 482%)
10K6.21 mi3.10 mi19461+76711852+33411852+33418609(Top 73%)11480(Top 79%)11480(Top 518%)
15K9.32 mi3.11 mi18619+84211486+36611486+36616716(Top 65%)10696(Top 73%)10696(Top 482%)
20K12.43 mi3.11 mi17645+97411064+42211064+42215072(Top 59%)9988(Top 69%)9988(Top 450%)
Half13.11 mi0.68 mi17453+19210970+9410970+9414325(Top 56%)9647(Top 66%)9647(Top 435%)
25K15.53 mi2.42 mi16902+55110727+24310727+24314489(Top 57%)9580(Top 66%)9580(Top 432%)
30K18.64 mi3.11 mi16353+54910430+29710430+29714066(Top 55%)9150(Top 63%)9150(Top 413%)
20M20.00 mi1.36 mi16135+21810312+11810312+11813373(Top 52%)8577(Top 59%)8577(Top 387%)
21M21.00 mi1.00 mi15931+20410182+13010182+13012759(Top 50%)8070(Top 55%)8070(Top 364%)
35K21.75 mi0.75 mi15746+18510079+10310079+10310526(Top 41%)7006(Top 48%)7006(Top 316%)
23M23.00 mi1.25 mi15417+3299890+1899890+18910542(Top 41%)6844(Top 47%)6844(Top 309%)
24M24.00 mi1.00 mi15246+1719787+1039787+10311287(Top 44%)7213(Top 49%)7213(Top 325%)
40K24.85 mi0.85 mi15035+2119654+1339654+13311160(Top 44%)7013(Top 48%)7013(Top 316%)
25.2M25.20 mi0.35 mi14960+759607+479607+4712052(Top 47%)7413(Top 51%)7413(Top 334%)
Finish26.22 mi1.02 mi14958+29572+359572+3514892(Top 58%)8942(Top 61%)8942(Top 403%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

16716

Males

10696

M45-49

10696

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

18609

Males

11480

M45-49

11480

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

16716

Males

10696

M45-49

10696

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15072

Males

9988

M45-49

9988

20K→Half

12.4 - 13.1 mi

Top 56%
×2story building
+19ft-37ft

Overall

14325

Males

9647

M45-49

9647

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

14489

Males

9580

M45-49

9580

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

14066

Males

9150

M45-49

9150

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

13373

Males

8577

M45-49

8577

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

12759

Males

8070

M45-49

8070

21M→35K

21.0 - 21.8 mi

Top 41%
×7story building
+17ft-86ft

Overall

10526

Males

7006

M45-49

7006

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

10542

Males

6844

M45-49

6844

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

11287

Males

7213

M45-49

7213

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11160

Males

7013

M45-49

7013

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12052

Males

7413

M45-49

7413

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

14892

Males

8942

M45-49

8942

Passing Analysis

Category:
Athletes Passed
5524
Passed By
254
Net Change
+5270
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20228
5K → 10K80942+767#20228#19461
10K → 15K8508+842#19461#18619
15K → 20K9784+974#18619#17645
20K → Half1931+192#17645#17453
Half → 25K56110+551#17453#16902
25K → 30K58031+549#16902#16353
30K → 20M23820+218#16353#16135
20M → 21M22521+204#16135#15931
21M → 35K1905+185#15931#15746
35K → 23M3378+329#15746#15417
23M → 24M1765+171#15417#15246
24M → 40K22312+211#15246#15035
40K → 25.2M8914+75#15035#14960
25.2M → Finish7573+2#14960#14958
TOTALS5524254+5270
📊

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