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BOSTON MARATHON 2023

Tony Ly

Bib: 3581•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 14%
Division (M18-39)
#0 / 5285
Top 32%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:13
Rank: #2312
Start → 5K
20:13 | 6:30/mi
10K· 6.21 mi
40:02
Rank: #2200 (+112)
5K → 10K
19:49 | 6:23/mi
15K· 9.32 mi
1:00:01
Rank: #2196 (+4)
10K → 15K
19:59 | 6:26/mi
20K· 12.43 mi
1:20:15
Rank: #2226 (-30)
15K → 20K
20:14 | 6:31/mi
Half· 13.11 mi
1:24:39
Rank: #2235 (-9)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:40:31
Rank: #2256 (-21)
Half → 25K
15:52 | 6:33/mi
30K· 18.64 mi
2:01:06
Rank: #2219 (+37)
25K → 30K
20:35 | 6:38/mi
20M
2:10:02
Rank: #2156 (+63)
30K → 20M
8:56 | 6:34/mi
21M
2:17:07
Rank: #2154 (+2)
20M → 21M
7:05 | 7:05/mi
35K· 21.75 mi
2:21:58
Rank: #2152 (+2)
21M → 35K
4:51 | 6:29/mi
23M
2:30:36
Rank: #2176 (-24)
35K → 23M
8:38 | 6:54/mi
24M
2:37:25
Rank: #2204 (-28)
23M → 24M
6:49 | 6:49/mi
40K· 24.85 mi
2:43:24
Rank: #2235 (-31)
24M → 40K
5:59 | 7:00/mi
25.2M
2:46:02
Rank: #2251 (-16)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
2:53:00
Rank: #2276 (-25)
25.2M → Finish
6:58 | 6:50/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:39
Pace6:27 /mi
2nd Half
Distance13.11 mi
Time1:28:21
Pace6:44 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3720:136:3020:13
6:30
-
10K
6.21 mi10:41:2640:026:2719:49
6:23
-0:07
15K
9.32 mi11:01:251:00:016:2619:59
6:26
+0:03
20K
12.43 mi11:21:391:20:156:2720:14
6:31
+0:05
Half
13.11 mi11:26:031:24:396:274:24
6:27
-0:04
25K
15.53 mi11:41:551:40:316:2815:52
6:33
+0:06
30K
18.64 mi12:02:302:01:066:3020:35
6:38
+0:05
20M
20.00 mi12:11:262:10:026:308:56
6:34
-0:04
21M
21.00 mi12:18:312:17:076:327:05
7:05
+0:31
35K
21.75 mi12:23:222:21:586:324:51
6:29
-0:36
23M
23.00 mi12:32:002:30:366:338:38
6:54
+0:25
24M
24.00 mi12:38:492:37:256:346:49
6:49
-0:05
40K
24.85 mi12:44:482:43:246:345:59
7:00
+0:11
25.2M
25.20 mi12:47:262:46:026:352:38
7:38
+0:38
Finish
26.22 mi12:54:242:53:006:366:58
6:50
-0:48

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

6:23 /mi

Average Pace

6:36 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:17

94% of race

Time at Steady Pace

7:05

4% of race

Time at Slower Pace

2:38

2% of race

Average Pace: 6:36 /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 mi10:21:3720:136:3020:13
6:30
#2312
10K
6.21 mi10:41:2640:026:2719:49
6:23
#2200
15K
9.32 mi11:01:251:00:016:2619:59
6:26
#2196
20K
12.43 mi11:21:391:20:156:2720:14
6:31
#2226
Half
13.11 mi11:26:031:24:396:274:24
6:27
#2235
25K
15.53 mi11:41:551:40:316:2815:52
6:33
#2256
30K
18.64 mi12:02:302:01:066:3020:35
6:38
#2219
20M
20.00 mi12:11:262:10:026:308:56
6:34
#2156
21M
21.00 mi12:18:312:17:076:327:05
7:05
#2154
35K
21.75 mi12:23:222:21:586:324:51
6:29
#2152
23M
23.00 mi12:32:002:30:366:338:38
6:54
#2176
24M
24.00 mi12:38:492:37:256:346:49
6:49
#2204
40K
24.85 mi12:44:482:43:246:345:59
7:00
#2235
25.2M
25.20 mi12:47:262:46:026:352:38
7:38
#2251
Finish
26.22 mi12:54:242:53:006:366:58
6:50
#2276
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2312220422042271(Top 9%)2180(Top 14%)2180(Top 41%)
10K6.21 mi3.10 mi2200+1122106+982106+982128(Top 8%)2039(Top 13%)2039(Top 39%)
15K9.32 mi3.11 mi2196+4210621062271(Top 9%)2180(Top 14%)2180(Top 41%)
20K12.43 mi3.11 mi2226-302131-252131-252354(Top 9%)2256(Top 15%)2256(Top 43%)
Half13.11 mi0.68 mi2235-92141-102141-102471(Top 9%)2370(Top 16%)2370(Top 45%)
25K15.53 mi2.42 mi2256-212162-212162-212395(Top 9%)2294(Top 15%)2294(Top 43%)
30K18.64 mi3.11 mi2219+372129+332129+332071(Top 8%)1978(Top 13%)1978(Top 37%)
20M20.00 mi1.36 mi2156+632067+622067+621753(Top 7%)1673(Top 11%)1673(Top 32%)
21M21.00 mi1.00 mi2154+22063+42063+42528(Top 9%)2386(Top 16%)2386(Top 45%)
35K21.75 mi0.75 mi2152+22061+22061+22321(Top 9%)2201(Top 15%)2201(Top 42%)
23M23.00 mi1.25 mi2176-242085-242085-243173(Top 12%)2950(Top 19%)2950(Top 56%)
24M24.00 mi1.00 mi2204-282114-292114-293711(Top 14%)3397(Top 22%)3397(Top 64%)
40K24.85 mi0.85 mi2235-312145-312145-313799(Top 14%)3416(Top 23%)3416(Top 65%)
25.2M25.20 mi0.35 mi2251-162158-132158-134462(Top 17%)3875(Top 26%)3875(Top 73%)
Finish26.22 mi1.02 mi2276-252180-222180-224250(Top 16%)3726(Top 25%)3726(Top 71%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2271

Males

2180

M18-39

2180

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2128

Males

2039

M18-39

2039

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2271

Males

2180

M18-39

2180

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2354

Males

2256

M18-39

2256

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2471

Males

2370

M18-39

2370

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2395

Males

2294

M18-39

2294

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2071

Males

1978

M18-39

1978

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1753

Males

1673

M18-39

1673

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2528

Males

2386

M18-39

2386

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2321

Males

2201

M18-39

2201

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3173

Males

2950

M18-39

2950

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3711

Males

3397

M18-39

3397

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3799

Males

3416

M18-39

3416

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4462

Males

3875

M18-39

3875

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4250

Males

3726

M18-39

3726

Passing Analysis

Category:
Athletes Passed
640
Passed By
604
Net Change
+36
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2312
5K → 10K17866+112#2312#2200
10K → 15K7268+4#2200#2196
15K → 20K4676-30#2196#2226
20K → Half1120-9#2226#2235
Half → 25K3455-21#2235#2256
25K → 30K8245+37#2256#2219
30K → 20M707+63#2219#2156
20M → 21M3836+2#2156#2154
21M → 35K1614+2#2154#2152
35K → 23M3054-24#2152#2176
23M → 24M1947-28#2176#2204
24M → 40K1950-31#2204#2235
40K → 25.2M622-16#2235#2251
25.2M → Finish1944-25#2251#2276
TOTALS640604+36
📊

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