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BOSTON MARATHON 2023

Drew Spencer

Bib: 8105•M

IL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 33%
Gender (Male)
#0 / 15176
Top 47%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
7:21/mi
22:51
↑ 97↓ 3451.5%
10K· 6.21 mi
7:25/mi
45:54
↑ 79↓ 1380.4%
15K· 9.32 mi
7:14/mi
1:08:23
↑ 67↓ 78
20K· 12.43 mi
7:26/mi
1:31:30
↑ 106↓ 860.1%
Half· 13.11 mi
7:12/mi
1:36:25
↑ 19↓ 370.5%
25K· 15.53 mi
7:20/mi
1:54:13
↑ 66↓ 880.2%
30K· 18.64 mi
7:51/mi
2:18:35
↑ 181↓ 1480.2%
20M
7:46/mi
2:29:08
↑ 64↓ 500.2%
21M
8:19/mi
2:37:27
↑ 106↓ 241.6%
35K· 21.75 mi
7:49/mi
2:43:18
↑ 17↓ 861.7%
23M
8:14/mi
2:53:37
↑ 23↓ 630.6%
24M
8:03/mi
3:01:40
↓ 821.3%
40K· 24.85 mi
7:44/mi
3:08:17
↓ 200.3%
25.2M
8:16/mi
3:11:08
↑ 13↓ 160.2%
Finish· 26.22 mi
7:17/mi
3:18:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:25
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:42:08
Pace7:47 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1422:517:2122:51
7:21
-
10K
6.21 mi11:11:1745:547:2323:03
7:25
+0:04
15K
9.32 mi11:33:461:08:237:2022:29
7:14
-0:11
20K
12.43 mi11:56:531:31:307:2223:07
7:26
+0:12
Half
13.11 mi12:01:481:36:257:214:55
7:12
-0:14
25K
15.53 mi12:19:361:54:137:2117:48
7:20
+0:08
30K
18.64 mi12:43:582:18:357:2624:22
7:51
+0:31
20M
20.00 mi12:54:312:29:087:2710:33
7:46
-0:05
21M
21.00 mi13:02:502:37:277:308:19
8:19
+0:33
35K
21.75 mi13:08:412:43:187:315:51
7:49
-0:30
23M
23.00 mi13:19:002:53:377:3310:19
8:14
+0:25
24M
24.00 mi13:27:033:01:407:348:03
8:03
-0:11
40K
24.85 mi13:33:403:08:177:356:37
7:44
-0:19
25.2M
25.20 mi13:36:313:11:087:352:51
8:16
+0:32
Finish
26.22 mi13:43:563:18:337:357:25
7:17
-0:59

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

7:12 /mi

Average Pace

7:35 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:01

85% of race

Time at Steady Pace

29:32

15% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:34 /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 mi10:48:1422:517:2122:51
7:21
#8474
10K
6.21 mi11:11:1745:547:2323:03
7:25
#9080
15K
9.32 mi11:33:461:08:237:2022:29
7:14
#8740
20K
12.43 mi11:56:531:31:307:2223:07
7:26
#8718
Half
13.11 mi12:01:481:36:257:214:55
7:12
#8668
25K
15.53 mi12:19:361:54:137:2117:48
7:20
#8456
30K
18.64 mi12:43:582:18:357:2624:22
7:51
#8638
20M
20.00 mi12:54:312:29:087:2710:33
7:46
#8614
21M
21.00 mi13:02:502:37:277:308:19
8:19
#8619
35K
21.75 mi13:08:412:43:187:315:51
7:49
#8696
23M
23.00 mi13:19:002:53:377:3310:19
8:14
#8843
24M
24.00 mi13:27:033:01:407:348:03
8:03
#8936
40K
24.85 mi13:33:403:08:177:356:37
7:44
#8892
25.2M
25.20 mi13:36:313:11:087:352:51
8:16
#8854
Finish
26.22 mi13:43:563:18:337:357:25
7:17
#8751
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi8474728672868054(Top 30%)6957(Top 46%)6957(Top 132%)
10K6.21 mi3.10 mi9080-6067620-3347620-3349786(Top 37%)8048(Top 53%)8048(Top 152%)
15K9.32 mi3.11 mi8740+3407405+2157405+2158054(Top 30%)6957(Top 46%)6957(Top 132%)
20K12.43 mi3.11 mi8718+227387+187387+188822(Top 33%)7393(Top 49%)7393(Top 140%)
Half13.11 mi0.68 mi8668+507358+297358+297899(Top 30%)6847(Top 45%)6847(Top 130%)
25K15.53 mi2.42 mi8456+2127204+1547204+1547559(Top 28%)6521(Top 43%)6521(Top 123%)
30K18.64 mi3.11 mi8638-1827275-717275-719667(Top 36%)7647(Top 50%)7647(Top 145%)
20M20.00 mi1.36 mi8614+247245+307245+308565(Top 32%)6932(Top 46%)6932(Top 131%)
21M21.00 mi1.00 mi8619-57229+167229+169299(Top 35%)7236(Top 48%)7236(Top 137%)
35K21.75 mi0.75 mi8696-777263-347263-3410750(Top 40%)7973(Top 53%)7973(Top 151%)
23M23.00 mi1.25 mi8843-1477326-637326-6311437(Top 43%)8184(Top 54%)8184(Top 155%)
24M24.00 mi1.00 mi8936-937353-277353-2711545(Top 43%)8168(Top 54%)8168(Top 155%)
40K24.85 mi0.85 mi8892+447304+497304+498213(Top 31%)6377(Top 42%)6377(Top 121%)
25.2M25.20 mi0.35 mi8854+387273+317273+318035(Top 30%)6195(Top 41%)6195(Top 117%)
Finish26.22 mi1.02 mi8751+1037191+827191+826957(Top 26%)5540(Top 37%)5540(Top 105%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

8054

Males

6957

M18-39

6957

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

9786

Males

8048

M18-39

8048

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

8054

Males

6957

M18-39

6957

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

8822

Males

7393

M18-39

7393

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

7899

Males

6847

M18-39

6847

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

7559

Males

6521

M18-39

6521

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9667

Males

7647

M18-39

7647

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

8565

Males

6932

M18-39

6932

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9299

Males

7236

M18-39

7236

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

10750

Males

7973

M18-39

7973

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

11437

Males

8184

M18-39

8184

23M→24M

23.0 - 24.0 mi

Top 43%
×6story building
+12ft-82ft

Overall

11545

Males

8168

M18-39

8168

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8213

Males

6377

M18-39

6377

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8035

Males

6195

M18-39

6195

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

6957

Males

5540

M18-39

5540

Passing Analysis

Category:
Athletes Passed
1481
Passed By
1758
Net Change
-277
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8474
5K → 10K82688-606#8474#9080
10K → 15K36626+340#9080#8740
15K → 20K137115+22#8740#8718
20K → Half577+50#8718#8668
Half → 25K22513+212#8668#8456
25K → 30K112294-182#8456#8638
30K → 20M8965+24#8638#8614
20M → 21M7580-5#8614#8619
21M → 35K2097-77#8619#8696
35K → 23M39186-147#8696#8843
23M → 24M43136-93#8843#8936
24M → 40K7228+44#8936#8892
40K → 25.2M479+38#8892#8854
25.2M → Finish11714+103#8854#8751
TOTALS14811758-277
📊

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