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BOSTON MARATHON 2023

Liam Green

Bib: 5239•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 25%
Division (M18-39)
#0 / 5285
Top 49%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:11
Rank: #4840
Start → 5K
21:11 | 6:49/mi
10K· 6.21 mi
42:24
Rank: #5149 (-309)
5K → 10K
21:13 | 6:50/mi
15K· 9.32 mi
1:03:43
Rank: #5321 (-172)
10K → 15K
21:19 | 6:52/mi
20K· 12.43 mi
1:24:49
Rank: #5073 (+248)
15K → 20K
21:06 | 6:47/mi
Half· 13.11 mi
1:29:21
Rank: #4998 (+75)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:45:55
Rank: #4868 (+130)
Half → 25K
16:34 | 6:50/mi
30K· 18.64 mi
2:07:31
Rank: #4674 (+194)
25K → 30K
21:36 | 6:57/mi
20M
2:17:03
Rank: #4602 (+72)
30K → 20M
9:32 | 7:01/mi
21M
2:24:22
Rank: #4537 (+65)
20M → 21M
7:19 | 7:19/mi
35K· 21.75 mi
2:29:15
Rank: #4418 (+119)
21M → 35K
4:53 | 6:32/mi
23M
2:37:51
Rank: #4291 (+127)
35K → 23M
8:36 | 6:52/mi
24M
2:44:30
Rank: #4228 (+63)
23M → 24M
6:39 | 6:39/mi
40K· 24.85 mi
2:50:17
Rank: #4120 (+108)
24M → 40K
5:47 | 6:46/mi
25.2M
2:52:48
Rank: #4093 (+27)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:59:21
Rank: #3974 (+119)
25.2M → Finish
6:33 | 6:26/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:29:21
Pace6:49 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:30:00
Pace6:52 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0921:116:4921:11
6:49
-
10K
6.21 mi10:45:2242:246:4921:13
6:50
+0:01
15K
9.32 mi11:06:411:03:436:5021:19
6:52
+0:02
20K
12.43 mi11:27:471:24:496:4921:06
6:47
-0:05
Half
13.11 mi11:32:191:29:216:494:32
6:39
-0:08
25K
15.53 mi11:48:531:45:556:4916:34
6:50
+0:11
30K
18.64 mi12:10:292:07:316:5021:36
6:57
+0:07
20M
20.00 mi12:20:012:17:036:519:32
7:01
+0:04
21M
21.00 mi12:27:202:24:226:527:19
7:19
+0:18
35K
21.75 mi12:32:132:29:156:524:53
6:32
-0:47
23M
23.00 mi12:40:492:37:516:528:36
6:52
+0:20
24M
24.00 mi12:47:282:44:306:516:39
6:39
-0:13
40K
24.85 mi12:53:152:50:176:515:47
6:46
+0:07
25.2M
25.20 mi12:55:462:52:486:512:31
7:18
+0:32
Finish
26.22 mi13:02:192:59:216:516:33
6:26
-0:52

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

6:26 /mi

Average Pace

6:51 /mi

Slowest Pace

7:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:31

95% of race

Time at Steady Pace

9:50

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:50 /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 mi10:24:0921:116:4921:11
6:49
#4840
10K
6.21 mi10:45:2242:246:4921:13
6:50
#5149
15K
9.32 mi11:06:411:03:436:5021:19
6:52
#5321
20K
12.43 mi11:27:471:24:496:4921:06
6:47
#5073
Half
13.11 mi11:32:191:29:216:494:32
6:39
#4998
25K
15.53 mi11:48:531:45:556:4916:34
6:50
#4868
30K
18.64 mi12:10:292:07:316:5021:36
6:57
#4674
20M
20.00 mi12:20:012:17:036:519:32
7:01
#4602
21M
21.00 mi12:27:202:24:226:527:19
7:19
#4537
35K
21.75 mi12:32:132:29:156:524:53
6:32
#4418
23M
23.00 mi12:40:492:37:516:528:36
6:52
#4291
24M
24.00 mi12:47:282:44:306:516:39
6:39
#4228
40K
24.85 mi12:53:152:50:176:515:47
6:46
#4120
25.2M
25.20 mi12:55:462:52:486:512:31
7:18
#4093
Finish
26.22 mi13:02:192:59:216:516:33
6:26
#3974
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4840449944995640(Top 21%)5177(Top 34%)5177(Top 98%)
10K6.21 mi3.10 mi5149-3094769-2704769-2705551(Top 21%)5101(Top 34%)5101(Top 97%)
15K9.32 mi3.11 mi5321-1724924-1554924-1555640(Top 21%)5177(Top 34%)5177(Top 98%)
20K12.43 mi3.11 mi5073+2484710+2144710+2144360(Top 16%)4070(Top 27%)4070(Top 77%)
Half13.11 mi0.68 mi4998+754646+644646+643816(Top 14%)3600(Top 24%)3600(Top 68%)
25K15.53 mi2.42 mi4868+1304525+1214525+1214419(Top 17%)4117(Top 27%)4117(Top 78%)
30K18.64 mi3.11 mi4674+1944358+1674358+1674023(Top 15%)3757(Top 25%)3757(Top 71%)
20M20.00 mi1.36 mi4602+724290+684290+684109(Top 15%)3799(Top 25%)3799(Top 72%)
21M21.00 mi1.00 mi4537+654232+584232+583692(Top 14%)3423(Top 23%)3423(Top 65%)
35K21.75 mi0.75 mi4418+1194120+1124120+1122608(Top 10%)2467(Top 16%)2467(Top 47%)
23M23.00 mi1.25 mi4291+1274015+1054015+1053057(Top 11%)2852(Top 19%)2852(Top 54%)
24M24.00 mi1.00 mi4228+633958+573958+572854(Top 11%)2655(Top 17%)2655(Top 50%)
40K24.85 mi0.85 mi4120+1083856+1023856+1022676(Top 10%)2475(Top 16%)2475(Top 47%)
25.2M25.20 mi0.35 mi4093+273832+243832+242964(Top 11%)2719(Top 18%)2719(Top 51%)
Finish26.22 mi1.02 mi3974+1193719+1133719+1132156(Top 8%)2001(Top 13%)2001(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5640

Males

5177

M18-39

5177

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5551

Males

5101

M18-39

5101

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5640

Males

5177

M18-39

5177

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4360

Males

4070

M18-39

4070

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3816

Males

3600

M18-39

3600

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4419

Males

4117

M18-39

4117

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4023

Males

3757

M18-39

3757

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4109

Males

3799

M18-39

3799

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3692

Males

3423

M18-39

3423

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2608

Males

2467

M18-39

2467

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

3057

Males

2852

M18-39

2852

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

2854

Males

2655

M18-39

2655

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2676

Males

2475

M18-39

2475

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

2964

Males

2719

M18-39

2719

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2156

Males

2001

M18-39

2001

Passing Analysis

Category:
Athletes Passed
1732
Passed By
866
Net Change
+866
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4840
5K → 10K90399-309#4840#5149
10K → 15K53225-172#5149#5321
15K → 20K27022+248#5321#5073
20K → Half794+75#5073#4998
Half → 25K16939+130#4998#4868
25K → 30K24147+194#4868#4674
30K → 20M10129+72#4674#4602
20M → 21M9530+65#4602#4537
21M → 35K1223+119#4537#4418
35K → 23M14720+127#4418#4291
23M → 24M8118+63#4291#4228
24M → 40K1146+108#4228#4120
40K → 25.2M4013+27#4120#4093
25.2M → Finish13011+119#4093#3974
TOTALS1732866+866
📊

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