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BOSTON MARATHON 2024

Mason Sheffield

Bib: 27486•M

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0:00
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Division (M18-39)
#0 / 4849
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
10:35/mi
32:54
↑ 97↓ 3451.5%
10K· 6.21 mi
10:38/mi
1:05:57
↑ 79↓ 1380.4%
15K· 9.32 mi
10:54/mi
1:39:49
↑ 67↓ 78
20K· 12.43 mi
11:04/mi
2:14:11
↑ 106↓ 860.1%
Half· 13.11 mi
10:57/mi
2:21:39
↑ 19↓ 370.5%
25K· 15.53 mi
11:54/mi
2:50:29
↑ 66↓ 880.2%
30K· 18.64 mi
11:50/mi
3:27:16
↑ 181↓ 1480.2%
20M
13:01/mi
3:44:58
↑ 64↓ 500.2%
21M
12:38/mi
3:57:36
↑ 106↓ 241.6%
35K· 21.75 mi
11:48/mi
4:06:26
↑ 17↓ 861.7%
23M
11:44/mi
4:21:07
↑ 23↓ 630.6%
24M
11:51/mi
4:32:58
↓ 821.3%
40K· 24.85 mi
11:51/mi
4:43:06
↓ 200.3%
25.2M
13:06/mi
4:47:37
↑ 13↓ 160.2%
Finish· 26.22 mi
10:08/mi
4:57:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:21:39
Pace10:48 /mi
2nd Half
Distance13.11 mi
Time2:36:18
Pace11:55 /mi
📊Positive Split: 10.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:0932:5410:3532:54
10:35
-
10K
6.21 mi12:25:121:05:5710:3733:03
10:38
+0:03
15K
9.32 mi12:59:041:39:4910:4333:52
10:54
+0:16
20K
12.43 mi13:33:262:14:1110:4834:22
11:04
+0:10
Half
13.11 mi13:40:542:21:3910:487:28
10:57
-0:07
25K
15.53 mi14:09:442:50:2910:5828:50
11:54
+0:57
30K
18.64 mi14:46:313:27:1611:0736:47
11:50
-0:04
20M
20.00 mi15:04:133:44:5811:1517:42
13:01
+1:11
21M
21.00 mi15:16:513:57:3611:1912:38
12:38
-0:23
35K
21.75 mi15:25:414:06:2611:208:50
11:48
-0:50
23M
23.00 mi15:40:224:21:0711:2114:41
11:44
-0:04
24M
24.00 mi15:52:134:32:5811:2211:51
11:51
+0:07
40K
24.85 mi16:02:214:43:0611:2310:08
11:51
0:00
25.2M
25.20 mi16:06:524:47:3711:254:31
13:06
+1:15
Finish
26.22 mi16:17:124:57:5711:2210:20
10:08
-2:58

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

10:08 /mi

Average Pace

11:22 /mi

Slowest Pace

13:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:59

51% of race

Time at Steady Pace

1:51:07

37% of race

Time at Slower Pace

34:51

12% of race

Average Pace: 11:22 /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 mi11:52:0932:5410:3532:54
10:35
#24243
10K
6.21 mi12:25:121:05:5710:3733:03
10:38
#24006
15K
9.32 mi12:59:041:39:4910:4333:52
10:54
#23843
20K
12.43 mi13:33:262:14:1110:4834:22
11:04
#23595
Half
13.11 mi13:40:542:21:3910:487:28
10:57
#23585
25K
15.53 mi14:09:442:50:2910:5828:50
11:54
#23514
30K
18.64 mi14:46:313:27:1611:0736:47
11:50
#23191
20M
20.00 mi15:04:133:44:5811:1517:42
13:01
#23179
21M
21.00 mi15:16:513:57:3611:1912:38
12:38
#23043
35K
21.75 mi15:25:414:06:2611:208:50
11:48
#22976
23M
23.00 mi15:40:224:21:0711:2114:41
11:44
#22865
24M
24.00 mi15:52:134:32:5811:2211:51
11:51
#22803
40K
24.85 mi16:02:214:43:0611:2310:08
11:51
#22735
25.2M
25.20 mi16:06:524:47:3711:254:31
13:06
#22697
Finish
26.22 mi16:17:124:57:5711:2210:20
10:08
#22601
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24243141011410123600(Top 92%)13807(Top 95%)13807(Top 285%)
10K6.21 mi3.10 mi24006+23714005+9614005+9623747(Top 93%)13874(Top 95%)13874(Top 286%)
15K9.32 mi3.11 mi23843+16313924+8113924+8123600(Top 92%)13807(Top 95%)13807(Top 285%)
20K12.43 mi3.11 mi23595+24813804+12013804+12022723(Top 89%)13374(Top 92%)13374(Top 276%)
Half13.11 mi0.68 mi23585+1013799+513799+523420(Top 92%)13642(Top 94%)13642(Top 281%)
25K15.53 mi2.42 mi23514+7113734+6513734+6522988(Top 90%)13413(Top 92%)13413(Top 277%)
30K18.64 mi3.11 mi23191+32313539+19513539+19521647(Top 85%)12625(Top 87%)12625(Top 260%)
20M20.00 mi1.36 mi23179+1213511+2813511+2822872(Top 90%)13137(Top 90%)13137(Top 271%)
21M21.00 mi1.00 mi23043+13613438+7313438+7320101(Top 79%)11678(Top 80%)11678(Top 241%)
35K21.75 mi0.75 mi22976+6713393+4513393+4521450(Top 84%)12336(Top 85%)12336(Top 254%)
23M23.00 mi1.25 mi22865+11113327+6613327+6620164(Top 79%)11648(Top 80%)11648(Top 240%)
24M24.00 mi1.00 mi22803+6213290+3713290+3721125(Top 83%)12086(Top 83%)12086(Top 249%)
40K24.85 mi0.85 mi22735+6813247+4313247+4320145(Top 79%)11506(Top 79%)11506(Top 237%)
25.2M25.20 mi0.35 mi22697+3813225+2213225+2219909(Top 78%)11408(Top 78%)11408(Top 235%)
Finish26.22 mi1.02 mi22601+9613161+6413161+6418884(Top 74%)10934(Top 75%)10934(Top 225%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21story building
+97ft-345ft

Overall

23600

Males

13807

M18-39

13807

5K→10K

3.1 - 6.2 mi

Top 93%
×5story building
+79ft-138ft

Overall

23747

Males

13874

M18-39

13874

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+67ft-78ft

Overall

23600

Males

13807

M18-39

13807

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

22723

Males

13374

M18-39

13374

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

23420

Males

13642

M18-39

13642

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

22988

Males

13413

M18-39

13413

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

21647

Males

12625

M18-39

12625

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

22872

Males

13137

M18-39

13137

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

20101

Males

11678

M18-39

11678

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

21450

Males

12336

M18-39

12336

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

20164

Males

11648

M18-39

11648

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

21125

Males

12086

M18-39

12086

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

20145

Males

11506

M18-39

11506

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

19909

Males

11408

M18-39

11408

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

18884

Males

10934

M18-39

10934

Passing Analysis

Category:
Athletes Passed
2040
Passed By
398
Net Change
+1642
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24243
5K → 10K31578+237#24243#24006
10K → 15K23370+163#24006#23843
15K → 20K27830+248#23843#23595
20K → Half2717+10#23595#23585
Half → 25K14675+71#23585#23514
25K → 30K33714+323#23514#23191
30K → 20M7058+12#23191#23179
20M → 21M1382+136#23179#23043
21M → 35K7811+67#23043#22976
35K → 23M1132+111#22976#22865
23M → 24M7513+62#22865#22803
24M → 40K8315+68#22803#22735
40K → 25.2M4810+38#22735#22697
25.2M → Finish993+96#22697#22601
TOTALS2040398+1642
📊

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