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BOSTON MARATHON 2023

Spencer Waldmann

Bib: 1751•M

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 8%
Gender (Male)
#0 / 15176
Top 13%
Division (M18-39)
#0 / 5285
Top 29%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:36
Rank: #3081
Start → 5K
6:38/mi
20:36 split
10K· 6.21 mi
41:08
Rank: #3300 (-219)
5K → 10K
6:37/mi
20:32 split
15K· 9.32 mi
1:01:32
Rank: #3203 (+97)
10K → 15K
6:34/mi
20:24 split
20K· 12.43 mi
1:21:54
Rank: #3012 (+191)
15K → 20K
6:33/mi
20:22 split
Half· 13.11 mi
1:26:19
Rank: #2980 (+32)
20K → Half
6:28/mi
4:25 split
25K· 15.53 mi
1:42:06
Rank: #2807 (+173)
Half → 25K
6:31/mi
15:47 split
30K· 18.64 mi
2:02:38
Rank: #2622 (+185)
25K → 30K
6:37/mi
20:32 split
20M
2:11:38
Rank: #2549 (+73)
30K → 20M
6:37/mi
9:00 split
21M
2:18:25
Rank: #2435 (+114)
20M → 21M
6:47/mi
6:47 split
35K· 21.75 mi
2:23:20
Rank: #2430 (+5)
21M → 35K
6:34/mi
4:55 split
23M
2:31:35
Rank: #2364 (+66)
35K → 23M
6:35/mi
8:15 split
24M
2:37:52
Rank: #2297 (+67)
23M → 24M
6:17/mi
6:17 split
40K· 24.85 mi
2:43:10
Rank: #2202 (+95)
24M → 40K
6:12/mi
5:18 split
25.2M
2:45:30
Rank: #2161 (+41)
40K → 25.2M
6:46/mi
2:20 split
Finish· 26.22 mi
2:51:37
Rank: #2040 (+121)
25.2M → Finish
6:00/mi
6:07 split

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:26:19
Pace6:35 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:25:18
Pace6:30 /mi
📊Negative Split: 1.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:0720:366:3820:36
6:38
-
10K
6.21 mi10:41:3941:086:3720:32
6:37
-0:01
15K
9.32 mi11:02:031:01:326:3620:24
6:34
-0:03
20K
12.43 mi11:22:251:21:546:3520:22
6:33
-0:01
Half
13.11 mi11:26:501:26:196:354:25
6:28
-0:05
25K
15.53 mi11:42:371:42:066:3415:47
6:31
+0:03
30K
18.64 mi12:03:092:02:386:3520:32
6:37
+0:06
20M
20.00 mi12:12:092:11:386:359:00
6:37
0:00
21M
21.00 mi12:18:562:18:256:356:47
6:47
+0:10
35K
21.75 mi12:23:512:23:206:354:55
6:34
-0:13
23M
23.00 mi12:32:062:31:356:358:15
6:35
+0:01
24M
24.00 mi12:38:232:37:526:356:17
6:17
-0:18
40K
24.85 mi12:43:412:43:106:345:18
6:12
-0:05
25.2M
25.20 mi12:46:012:45:306:342:20
6:46
+0:34
Finish
26.22 mi12:52:082:51:376:336:07
6:00
-0:46

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

6:00 /mi

Average Pace

6:33 /mi

Slowest Pace

6:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:50

54% of race

Time at Steady Pace

1:19:47

46% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:33 /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 mi10:21:0720:366:3820:36
6:38
#3081
10K
6.21 mi10:41:3941:086:3720:32
6:37
#3300
15K
9.32 mi11:02:031:01:326:3620:24
6:34
#3203
20K
12.43 mi11:22:251:21:546:3520:22
6:33
#3012
Half
13.11 mi11:26:501:26:196:354:25
6:28
#2980
25K
15.53 mi11:42:371:42:066:3415:47
6:31
#2807
30K
18.64 mi12:03:092:02:386:3520:32
6:37
#2622
20M
20.00 mi12:12:092:11:386:359:00
6:37
#2549
21M
21.00 mi12:18:562:18:256:356:47
6:47
#2435
35K
21.75 mi12:23:512:23:206:354:55
6:34
#2430
23M
23.00 mi12:32:062:31:356:358:15
6:35
#2364
24M
24.00 mi12:38:232:37:526:356:17
6:17
#2297
40K
24.85 mi12:43:412:43:106:345:18
6:12
#2202
25.2M
25.20 mi12:46:012:45:306:342:20
6:46
#2161
Finish
26.22 mi12:52:082:51:376:336:07
6:00
#2040
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3081291729173021(Top 11%)2880(Top 19%)2880(Top 54%)
10K6.21 mi3.10 mi3300-2193127-2103127-2103545(Top 13%)3351(Top 22%)3351(Top 63%)
15K9.32 mi3.11 mi3203+973049+783049+783021(Top 11%)2880(Top 19%)2880(Top 54%)
20K12.43 mi3.11 mi3012+1912874+1752874+1752585(Top 10%)2473(Top 16%)2473(Top 47%)
Half13.11 mi0.68 mi2980+322846+282846+282573(Top 10%)2467(Top 16%)2467(Top 47%)
25K15.53 mi2.42 mi2807+1732684+1622684+1622205(Top 8%)2115(Top 14%)2115(Top 40%)
30K18.64 mi3.11 mi2622+1852503+1812503+1811994(Top 7%)1907(Top 13%)1907(Top 36%)
20M20.00 mi1.36 mi2549+732437+662437+661956(Top 7%)1866(Top 12%)1866(Top 35%)
21M21.00 mi1.00 mi2435+1142333+1042333+1041369(Top 5%)1306(Top 9%)1306(Top 25%)
35K21.75 mi0.75 mi2430+52327+62327+62786(Top 10%)2613(Top 17%)2613(Top 49%)
23M23.00 mi1.25 mi2364+662263+642263+641732(Top 7%)1642(Top 11%)1642(Top 31%)
24M24.00 mi1.00 mi2297+672200+632200+631316(Top 5%)1246(Top 8%)1246(Top 24%)
40K24.85 mi0.85 mi2202+952114+862114+86663(Top 2%)627(Top 4%)627(Top 12%)
25.2M25.20 mi0.35 mi2161+412074+402074+401097(Top 4%)1044(Top 7%)1044(Top 20%)
Finish26.22 mi1.02 mi2040+1211956+1181956+118742(Top 3%)710(Top 5%)710(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21story building
+97ft-345ft

Overall

3021

Males

2880

M18-39

2880

5K→10K

3.1 - 6.2 mi

Top 13%
×5story building
+79ft-138ft

Overall

3545

Males

3351

M18-39

3351

10K→15K

6.2 - 9.3 mi

Top 11%
×3story building
+67ft-78ft

Overall

3021

Males

2880

M18-39

2880

15K→20K

9.3 - 12.4 mi

Top 10%
×5story building
+106ft-86ft

Overall

2585

Males

2473

M18-39

2473

20K→Half

12.4 - 13.1 mi

Top 10%
×2story building
+19ft-37ft

Overall

2573

Males

2467

M18-39

2467

Half→25K

13.1 - 15.5 mi

Top 8%
×4story building
+66ft-88ft

Overall

2205

Males

2115

M18-39

2115

25K→30K

15.5 - 18.6 mi

Top 7%
×9story building
+181ft-148ft

Overall

1994

Males

1907

M18-39

1907

30K→20M

18.6 - 20.0 mi

Top 7%
×5story building
+64ft-50ft

Overall

1956

Males

1866

M18-39

1866

20M→21M

20.0 - 21.0 mi

Top 5%
×8story building
+106ft-24ft

Overall

1369

Males

1306

M18-39

1306

21M→35K

21.0 - 21.8 mi

Top 10%
×7story building
+17ft-86ft

Overall

2786

Males

2613

M18-39

2613

35K→23M

21.8 - 23.0 mi

Top 7%
×5story building
+23ft-63ft

Overall

1732

Males

1642

M18-39

1642

23M→24M

23.0 - 24.0 mi

Top 5%
×6story building
+12ft-82ft

Overall

1316

Males

1246

M18-39

1246

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

663

Males

627

M18-39

627

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1097

Males

1044

M18-39

1044

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2story building
+22ft-21ft

Overall

742

Males

710

M18-39

710

Passing Analysis

Category:
Athletes Passed
1469
Passed By
428
Net Change
+1041
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3081
5K → 10K80299-219#3081#3300
10K → 15K14750+97#3300#3203
15K → 20K20615+191#3203#3012
20K → Half397+32#3012#2980
Half → 25K1774+173#2980#2807
25K → 30K1938+185#2807#2622
30K → 20M8310+73#2622#2549
20M → 21M1162+114#2549#2435
21M → 35K2621+5#2435#2430
35K → 23M737+66#2430#2364
23M → 24M692+67#2364#2297
24M → 40K961+95#2297#2202
40K → 25.2M421+41#2202#2161
25.2M → Finish1221+121#2161#2040
TOTALS1469428+1041
📊

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