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BOSTON MARATHON 2023

Eric Tam

Bib: 3033•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 23%
Division (M18-39)
#0 / 5285
Top 47%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:38
Rank: #6006
Start → 5K
21:38 | 6:58/mi
10K· 6.21 mi
42:25
Rank: #5176 (+830)
5K → 10K
20:47 | 6:41/mi
15K· 9.32 mi
1:03:00
Rank: #4594 (+582)
10K → 15K
20:35 | 6:38/mi
20K· 12.43 mi
1:23:42
Rank: #4203 (+391)
15K → 20K
20:42 | 6:40/mi
Half· 13.11 mi
1:28:10
Rank: #4135 (+68)
20K → Half
4:28 | 6:33/mi
25K· 15.53 mi
1:44:08
Rank: #3804 (+331)
Half → 25K
15:58 | 6:35/mi
30K· 18.64 mi
2:05:11
Rank: #3577 (+227)
25K → 30K
21:03 | 6:47/mi
20M
2:14:25
Rank: #3469 (+108)
30K → 20M
9:14 | 6:48/mi
21M
2:21:59
Rank: #3547 (-78)
20M → 21M
7:34 | 7:34/mi
35K· 21.75 mi
2:26:53
Rank: #3490 (+57)
21M → 35K
4:54 | 6:33/mi
23M
2:35:59
Rank: #3581 (-91)
35K → 23M
9:06 | 7:16/mi
24M
2:42:53
Rank: #3609 (-28)
23M → 24M
6:54 | 6:54/mi
40K· 24.85 mi
2:48:57
Rank: #3623 (-14)
24M → 40K
6:04 | 7:06/mi
25.2M
2:51:45
Rank: #3720 (-97)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
2:58:38
Rank: #3714 (+6)
25.2M → Finish
6:53 | 6:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:10
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:30:28
Pace6:54 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:2021:386:5821:38
6:58
-
10K
6.21 mi10:45:0742:256:5020:47
6:41
-0:17
15K
9.32 mi11:05:421:03:006:4620:35
6:38
-0:03
20K
12.43 mi11:26:241:23:426:4420:42
6:40
+0:02
Half
13.11 mi11:30:521:28:106:444:28
6:33
-0:07
25K
15.53 mi11:46:501:44:086:4215:58
6:35
+0:02
30K
18.64 mi12:07:532:05:116:4321:03
6:47
+0:12
20M
20.00 mi12:17:072:14:256:439:14
6:48
+0:01
21M
21.00 mi12:24:412:21:596:467:34
7:34
+0:46
35K
21.75 mi12:29:352:26:536:454:54
6:33
-1:01
23M
23.00 mi12:38:412:35:596:479:06
7:16
+0:43
24M
24.00 mi12:45:352:42:536:476:54
6:54
-0:22
40K
24.85 mi12:51:392:48:576:486:04
7:06
+0:12
25.2M
25.20 mi12:54:272:51:456:492:48
8:07
+1:01
Finish
26.22 mi13:01:202:58:386:496:53
6:45
-1:22

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

6:33 /mi

Average Pace

6:49 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

9:22

5% of race

Time at Steady Pace

2:23:44

80% of race

Time at Slower Pace

25:32

14% of race

Average Pace: 6:49 /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 mi10:24:2021:386:5821:38
6:58
#6006
10K
6.21 mi10:45:0742:256:5020:47
6:41
#5176
15K
9.32 mi11:05:421:03:006:4620:35
6:38
#4594
20K
12.43 mi11:26:241:23:426:4420:42
6:40
#4203
Half
13.11 mi11:30:521:28:106:444:28
6:33
#4135
25K
15.53 mi11:46:501:44:086:4215:58
6:35
#3804
30K
18.64 mi12:07:532:05:116:4321:03
6:47
#3577
20M
20.00 mi12:17:072:14:256:439:14
6:48
#3469
21M
21.00 mi12:24:412:21:596:467:34
7:34
#3547
35K
21.75 mi12:29:352:26:536:454:54
6:33
#3490
23M
23.00 mi12:38:412:35:596:479:06
7:16
#3581
24M
24.00 mi12:45:352:42:536:476:54
6:54
#3609
40K
24.85 mi12:51:392:48:576:486:04
7:06
#3623
25.2M
25.20 mi12:54:272:51:456:492:48
8:07
#3720
Finish
26.22 mi13:01:202:58:386:496:53
6:45
#3714
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6006548954893511(Top 13%)3325(Top 22%)3325(Top 63%)
10K6.21 mi3.10 mi5176+8304793+6964793+6964230(Top 16%)3963(Top 26%)3963(Top 75%)
15K9.32 mi3.11 mi4594+5824289+5044289+5043511(Top 13%)3325(Top 22%)3325(Top 63%)
20K12.43 mi3.11 mi4203+3913942+3473942+3473282(Top 12%)3116(Top 21%)3116(Top 59%)
Half13.11 mi0.68 mi4135+683880+623880+623101(Top 12%)2966(Top 20%)2966(Top 56%)
25K15.53 mi2.42 mi3804+3313593+2873593+2872634(Top 10%)2522(Top 17%)2522(Top 48%)
30K18.64 mi3.11 mi3577+2273386+2073386+2072841(Top 11%)2695(Top 18%)2695(Top 51%)
20M20.00 mi1.36 mi3469+1083280+1063280+1062795(Top 10%)2642(Top 17%)2642(Top 50%)
21M21.00 mi1.00 mi3547-783360-803360-804883(Top 18%)4386(Top 29%)4386(Top 83%)
35K21.75 mi0.75 mi3490+573307+533307+532729(Top 10%)2572(Top 17%)2572(Top 49%)
23M23.00 mi1.25 mi3581-913382-753382-755116(Top 19%)4543(Top 30%)4543(Top 86%)
24M24.00 mi1.00 mi3609-283405-233405-234143(Top 16%)3769(Top 25%)3769(Top 71%)
40K24.85 mi0.85 mi3623-143414-93414-94325(Top 16%)3841(Top 25%)3841(Top 73%)
25.2M25.20 mi0.35 mi3720-973495-813495-817080(Top 27%)5594(Top 37%)5594(Top 106%)
Finish26.22 mi1.02 mi3714+63488+73488+73802(Top 14%)3374(Top 22%)3374(Top 64%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3511

Males

3325

M18-39

3325

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4230

Males

3963

M18-39

3963

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3511

Males

3325

M18-39

3325

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3282

Males

3116

M18-39

3116

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3101

Males

2966

M18-39

2966

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2634

Males

2522

M18-39

2522

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

2841

Males

2695

M18-39

2695

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2795

Males

2642

M18-39

2642

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4883

Males

4386

M18-39

4386

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2729

Males

2572

M18-39

2572

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5116

Males

4543

M18-39

4543

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4143

Males

3769

M18-39

3769

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4325

Males

3841

M18-39

3841

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7080

Males

5594

M18-39

5594

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3802

Males

3374

M18-39

3374

Passing Analysis

Category:
Athletes Passed
2874
Passed By
582
Net Change
+2292
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6006
5K → 10K84919+830#6006#5176
10K → 15K5853+582#5176#4594
15K → 20K3943+391#4594#4203
20K → Half713+68#4203#4135
Half → 25K3343+331#4135#3804
25K → 30K24013+227#3804#3577
30K → 20M12012+108#3577#3469
20M → 21M31109-78#3469#3547
21M → 35K7114+57#3547#3490
35K → 23M41132-91#3490#3581
23M → 24M3260-28#3581#3609
24M → 40K4155-14#3609#3623
40K → 25.2M6103-97#3623#3720
25.2M → Finish5953+6#3720#3714
TOTALS2874582+2292
📊

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