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BOSTON MARATHON 2023

Joshua Spicer-Swett

Bib: 5399•M

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 29%
Gender (Male)
#0 / 15176
Top 44%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:50
Rank: #3733
Start → 5K
20:50 | 6:42/mi
10K· 6.21 mi
41:18
Rank: #3514 (+219)
5K → 10K
20:28 | 6:35/mi
15K· 9.32 mi
1:01:46
Rank: #3404 (+110)
10K → 15K
20:28 | 6:35/mi
20K· 12.43 mi
1:22:52
Rank: #3591 (-187)
15K → 20K
21:06 | 6:47/mi
Half· 13.11 mi
1:27:28
Rank: #3643 (-52)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:45:17
Rank: #4482 (-839)
Half → 25K
17:49 | 7:21/mi
30K· 18.64 mi
2:09:17
Rank: #5450 (-968)
25K → 30K
24:00 | 7:43/mi
20M
2:20:30
Rank: #5802 (-352)
30K → 20M
11:13 | 8:15/mi
21M
2:29:45
Rank: #6175 (-373)
20M → 21M
9:15 | 9:15/mi
35K· 21.75 mi
2:36:01
Rank: #6388 (-213)
21M → 35K
6:16 | 8:23/mi
23M
2:47:16
Rank: #6829 (-441)
35K → 23M
11:15 | 8:59/mi
24M
2:56:04
Rank: #7201 (-372)
23M → 24M
8:48 | 8:48/mi
40K· 24.85 mi
3:03:14
Rank: #7345 (-144)
24M → 40K
7:10 | 8:23/mi
25.2M
3:06:28
Rank: #7461 (-116)
40K → 25.2M
3:14 | 9:23/mi
Finish· 26.22 mi
3:15:18
Rank: #7819 (-358)
25.2M → Finish
8:50 | 8:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:28
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:47:50
Pace8:14 /mi
📊Positive Split: 23.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5220:506:4220:50
6:42
-
10K
6.21 mi10:44:2041:186:3920:28
6:35
-0:07
15K
9.32 mi11:04:481:01:466:3820:28
6:35
0:00
20K
12.43 mi11:25:541:22:526:4021:06
6:47
+0:12
Half
13.11 mi11:30:301:27:286:404:36
6:45
-0:02
25K
15.53 mi11:48:191:45:176:4717:49
7:21
+0:36
30K
18.64 mi12:12:192:09:176:5624:00
7:43
+0:22
20M
20.00 mi12:23:322:20:307:0111:13
8:15
+0:32
21M
21.00 mi12:32:472:29:457:089:15
9:15
+1:00
35K
21.75 mi12:39:032:36:017:106:16
8:23
-0:52
23M
23.00 mi12:50:182:47:167:1611:15
8:59
+0:36
24M
24.00 mi12:59:062:56:047:208:48
8:48
-0:11
40K
24.85 mi13:06:163:03:147:227:10
8:23
-0:25
25.2M
25.20 mi13:09:303:06:287:243:14
9:23
+1:00
Finish
26.22 mi13:18:203:15:187:278:50
8:40
-0:43

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

6:35 /mi

Average Pace

7:27 /mi

Slowest Pace

9:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:17

66% of race

Time at Steady Pace

33:29

17% of race

Time at Slower Pace

32:32

17% of race

Average Pace: 7:27 /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 mi10:23:5220:506:4220:50
6:42
#3733
10K
6.21 mi10:44:2041:186:3920:28
6:35
#3514
15K
9.32 mi11:04:481:01:466:3820:28
6:35
#3404
20K
12.43 mi11:25:541:22:526:4021:06
6:47
#3591
Half
13.11 mi11:30:301:27:286:404:36
6:45
#3643
25K
15.53 mi11:48:191:45:176:4717:49
7:21
#4482
30K
18.64 mi12:12:192:09:176:5624:00
7:43
#5450
20M
20.00 mi12:23:322:20:307:0111:13
8:15
#5802
21M
21.00 mi12:32:472:29:457:089:15
9:15
#6175
35K
21.75 mi12:39:032:36:017:106:16
8:23
#6388
23M
23.00 mi12:50:182:47:167:1611:15
8:59
#6829
24M
24.00 mi12:59:062:56:047:208:48
8:48
#7201
40K
24.85 mi13:06:163:03:147:227:10
8:23
#7345
25.2M
25.20 mi13:09:303:06:287:243:14
9:23
#7461
Finish
26.22 mi13:18:203:15:187:278:50
8:40
#7819
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3733350935093211(Top 12%)3057(Top 20%)3057(Top 58%)
10K6.21 mi3.10 mi3514+2193319+1903319+1903421(Top 13%)3250(Top 21%)3250(Top 61%)
15K9.32 mi3.11 mi3404+1103225+943225+943211(Top 12%)3057(Top 20%)3057(Top 58%)
20K12.43 mi3.11 mi3591-1873399-1743399-1744377(Top 16%)4087(Top 27%)4087(Top 77%)
Half13.11 mi0.68 mi3643-523448-493448-494833(Top 18%)4495(Top 30%)4495(Top 85%)
25K15.53 mi2.42 mi4482-8394193-7454193-7457605(Top 29%)6547(Top 43%)6547(Top 124%)
30K18.64 mi3.11 mi5450-9685028-8355028-8358812(Top 33%)7161(Top 47%)7161(Top 135%)
20M20.00 mi1.36 mi5802-3525300-2725300-27212011(Top 45%)8701(Top 57%)8701(Top 165%)
21M21.00 mi1.00 mi6175-3735572-2725572-27214686(Top 55%)9792(Top 65%)9792(Top 185%)
35K21.75 mi0.75 mi6388-2135731-1595731-15914518(Top 55%)9636(Top 63%)9636(Top 182%)
23M23.00 mi1.25 mi6829-4416041-3106041-31015955(Top 60%)10213(Top 67%)10213(Top 193%)
24M24.00 mi1.00 mi7201-3726270-2296270-22916154(Top 61%)10232(Top 67%)10232(Top 194%)
40K24.85 mi0.85 mi7345-1446346-766346-7612550(Top 47%)8558(Top 56%)8558(Top 162%)
25.2M25.20 mi0.35 mi7461-1166405-596405-5914474(Top 54%)9430(Top 62%)9430(Top 178%)
Finish26.22 mi1.02 mi7819-3586627-2226627-22216300(Top 61%)10280(Top 68%)10280(Top 195%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3211

Males

3057

M18-39

3057

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3421

Males

3250

M18-39

3250

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3211

Males

3057

M18-39

3057

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4377

Males

4087

M18-39

4087

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

4833

Males

4495

M18-39

4495

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

7605

Males

6547

M18-39

6547

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

8812

Males

7161

M18-39

7161

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

12011

Males

8701

M18-39

8701

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

14686

Males

9792

M18-39

9792

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

14518

Males

9636

M18-39

9636

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

15955

Males

10213

M18-39

10213

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

16154

Males

10232

M18-39

10232

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12550

Males

8558

M18-39

8558

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14474

Males

9430

M18-39

9430

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

16300

Males

10280

M18-39

10280

Passing Analysis

Category:
Athletes Passed
616
Passed By
4702
Net Change
-4086
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3733
5K → 10K328109+219#3733#3514
10K → 15K15949+110#3514#3404
15K → 20K33220-187#3404#3591
20K → Half355-52#3591#3643
Half → 25K7846-839#3643#4482
25K → 30K14982-968#4482#5450
30K → 20M9361-352#5450#5802
20M → 21M6379-373#5802#6175
21M → 35K7220-213#6175#6388
35K → 23M12453-441#6388#6829
23M → 24M8380-372#6829#7201
24M → 40K18162-144#7201#7345
40K → 25.2M4120-116#7345#7461
25.2M → Finish8366-358#7461#7819
TOTALS6164702-4086
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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