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BOSTON MARATHON 2024

David Spencer

Bib: 22943•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M70-74)
#0 / 195
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
9:17/mi
28:49
↑ 97↓ 3451.5%
10K· 6.21 mi
9:45/mi
59:07
↑ 79↓ 1380.4%
15K· 9.32 mi
10:24/mi
1:31:26
↑ 67↓ 78
20K· 12.43 mi
11:07/mi
2:05:58
↑ 106↓ 860.1%
Half· 13.11 mi
10:46/mi
2:13:19
↑ 19↓ 370.5%
25K· 15.53 mi
11:43/mi
2:41:43
↑ 66↓ 880.2%
30K· 18.64 mi
12:51/mi
3:21:39
↑ 181↓ 1480.2%
20M
13:24/mi
3:39:52
↑ 64↓ 500.2%
21M
15:21/mi
3:55:13
↑ 106↓ 241.6%
35K· 21.75 mi
13:34/mi
4:05:22
↑ 17↓ 861.7%
23M
12:36/mi
4:21:09
↑ 23↓ 630.6%
24M
12:49/mi
4:33:58
↓ 821.3%
40K· 24.85 mi
13:06/mi
4:45:10
↓ 200.3%
25.2M
16:29/mi
4:50:51
↑ 13↓ 160.2%
Finish· 26.22 mi
12:48/mi
5:03:54
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:13:19
Pace10:10 /mi
2nd Half
Distance13.11 mi
Time2:50:35
Pace13:01 /mi
📊Positive Split: 28.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:4028:499:1728:49
9:17
-
10K
6.21 mi11:56:5859:079:3130:18
9:45
+0:28
15K
9.32 mi12:29:171:31:269:4932:19
10:24
+0:39
20K
12.43 mi13:03:492:05:5810:0834:32
11:07
+0:43
Half
13.11 mi13:11:102:13:1910:107:21
10:46
-0:21
25K
15.53 mi13:39:342:41:4310:2528:24
11:43
+0:57
30K
18.64 mi14:19:303:21:3910:4939:56
12:51
+1:08
20M
20.00 mi14:37:433:39:5211:0018:13
13:24
+0:33
21M
21.00 mi14:53:043:55:1311:1215:21
15:21
+1:57
35K
21.75 mi15:03:134:05:2211:1710:09
13:34
-1:47
23M
23.00 mi15:19:004:21:0911:2115:47
12:36
-0:58
24M
24.00 mi15:31:494:33:5811:2512:49
12:49
+0:13
40K
24.85 mi15:43:014:45:1011:2811:12
13:06
+0:17
25.2M
25.20 mi15:48:424:50:5111:335:41
16:29
+3:23
Finish
26.22 mi16:01:455:03:5411:3613:03
12:48
-3:41

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

9:17 /mi

Average Pace

11:36 /mi

Slowest Pace

16:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:43

53% of race

Time at Steady Pace

2:01:09

40% of race

Time at Slower Pace

21:02

7% of race

Average Pace: 11:35 /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 mi11:26:4028:499:1728:49
9:17
#21052
10K
6.21 mi11:56:5859:079:3130:18
9:45
#21576
15K
9.32 mi12:29:171:31:269:4932:19
10:24
#22023
20K
12.43 mi13:03:492:05:5810:0834:32
11:07
#22295
Half
13.11 mi13:11:102:13:1910:107:21
10:46
#22346
25K
15.53 mi13:39:342:41:4310:2528:24
11:43
#22438
30K
18.64 mi14:19:303:21:3910:4939:56
12:51
#22614
20M
20.00 mi14:37:433:39:5211:0018:13
13:24
#22714
21M
21.00 mi14:53:043:55:1311:1215:21
15:21
#22843
35K
21.75 mi15:03:134:05:2211:1710:09
13:34
#22899
23M
23.00 mi15:19:004:21:0911:2115:47
12:36
#22869
24M
24.00 mi15:31:494:33:5811:2512:49
12:49
#22886
40K
24.85 mi15:43:014:45:1011:2811:12
13:06
#22881
25.2M
25.20 mi15:48:424:50:5111:335:41
16:29
#22927
Finish
26.22 mi16:01:455:03:5411:3613:03
12:48
#23008
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi21052125831258322752(Top 89%)13415(Top 92%)13415(Top 6879%)
10K6.21 mi3.10 mi21576-52412846-26312846-26321979(Top 86%)13036(Top 89%)13036(Top 6685%)
15K9.32 mi3.11 mi22023-44713072-22613072-22622752(Top 89%)13415(Top 92%)13415(Top 6879%)
20K12.43 mi3.11 mi22295-27213192-12013192-12022821(Top 89%)13420(Top 92%)13420(Top 6882%)
Half13.11 mi0.68 mi22346-5113213-2113213-2123175(Top 91%)13536(Top 93%)13536(Top 6942%)
25K15.53 mi2.42 mi22438-9213254-4113254-4122728(Top 89%)13284(Top 91%)13284(Top 6812%)
30K18.64 mi3.11 mi22614-17613283-2913283-2923111(Top 90%)13358(Top 92%)13358(Top 6850%)
20M20.00 mi1.36 mi22714-10013307-2413307-2423366(Top 91%)13379(Top 92%)13379(Top 6861%)
21M21.00 mi1.00 mi22843-12913339-3213339-3223946(Top 94%)13662(Top 94%)13662(Top 7006%)
35K21.75 mi0.75 mi22899-5613354-1513354-1523896(Top 94%)13599(Top 93%)13599(Top 6974%)
23M23.00 mi1.25 mi22869+3013329+2513329+2521891(Top 86%)12537(Top 86%)12537(Top 6429%)
24M24.00 mi1.00 mi22886-1713328+113328+122783(Top 89%)12950(Top 89%)12950(Top 6641%)
40K24.85 mi0.85 mi22881+513321+713321+722420(Top 88%)12718(Top 87%)12718(Top 6522%)
25.2M25.20 mi0.35 mi22927-4613343-2213343-2224361(Top 95%)13792(Top 95%)13792(Top 7073%)
Finish26.22 mi1.02 mi23008-8113367-2413367-2424182(Top 95%)13674(Top 94%)13674(Top 7012%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

22752

Males

13415

M70-74

13415

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

21979

Males

13036

M70-74

13036

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

22752

Males

13415

M70-74

13415

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

22821

Males

13420

M70-74

13420

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

23175

Males

13536

M70-74

13536

Half→25K

13.1 - 15.5 mi

Top 89%
×4story building
+66ft-88ft

Overall

22728

Males

13284

M70-74

13284

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

23111

Males

13358

M70-74

13358

30K→20M

18.6 - 20.0 mi

Top 91%
×5story building
+64ft-50ft

Overall

23366

Males

13379

M70-74

13379

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

23946

Males

13662

M70-74

13662

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

23896

Males

13599

M70-74

13599

35K→23M

21.8 - 23.0 mi

Top 86%
×5story building
+23ft-63ft

Overall

21891

Males

12537

M70-74

12537

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

22783

Males

12950

M70-74

12950

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

22420

Males

12718

M70-74

12718

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

24361

Males

13792

M70-74

13792

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

24182

Males

13674

M70-74

13674

Passing Analysis

Category:
Athletes Passed
709
Passed By
2665
Net Change
-1956
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21052
5K → 10K87611-524#21052#21576
10K → 15K72519-447#21576#22023
15K → 20K96368-272#22023#22295
20K → Half1162-51#22295#22346
Half → 25K90182-92#22346#22438
25K → 30K97273-176#22438#22614
30K → 20M43143-100#22614#22714
20M → 21M30159-129#22714#22843
21M → 35K1975-56#22843#22899
35K → 23M5929+30#22899#22869
23M → 24M4158-17#22869#22886
24M → 40K4237+5#22886#22881
40K → 25.2M450-46#22881#22927
25.2M → Finish1899-81#22927#23008
TOTALS7092665-1956
📊

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