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BOSTON MARATHON 2023

Alessandro Nicola Costa

Bib: 6465•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 28%
Gender (Male)
#0 / 15176
Top 42%
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
22:14
Rank: #7224
Start → 5K
22:14 | 7:09/mi
10K· 6.21 mi
44:32
Rank: #7540 (-316)
5K → 10K
22:18 | 7:11/mi
15K· 9.32 mi
1:07:17
Rank: #7884 (-344)
10K → 15K
22:45 | 7:19/mi
20K· 12.43 mi
1:31:09
Rank: #8506 (-622)
15K → 20K
23:52 | 7:41/mi
Half· 13.11 mi
1:36:11
Rank: #8544 (-38)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:54:32
Rank: #8617 (-73)
Half → 25K
18:21 | 7:34/mi
30K· 18.64 mi
2:19:01
Rank: #8807 (-190)
25K → 30K
24:29 | 7:53/mi
20M
2:29:21
Rank: #8698 (+109)
30K → 20M
10:20 | 7:37/mi
21M
2:36:58
Rank: #8460 (+238)
20M → 21M
7:37 | 7:37/mi
35K· 21.75 mi
2:42:23
Rank: #8391 (+69)
21M → 35K
5:25 | 7:14/mi
23M
2:51:37
Rank: #8158 (+233)
35K → 23M
9:14 | 7:22/mi
24M
2:58:48
Rank: #8016 (+142)
23M → 24M
7:11 | 7:11/mi
40K· 24.85 mi
3:04:53
Rank: #7843 (+173)
24M → 40K
6:05 | 7:07/mi
25.2M
3:07:30
Rank: #7763 (+80)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
3:14:22
Rank: #7546 (+217)
25.2M → Finish
6:52 | 6:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:11
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:38:11
Pace7:29 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:3222:147:0922:14
7:09
-
10K
6.21 mi10:47:5044:327:1022:18
7:11
+0:02
15K
9.32 mi11:10:351:07:177:1322:45
7:19
+0:08
20K
12.43 mi11:34:271:31:097:2023:52
7:41
+0:22
Half
13.11 mi11:39:291:36:117:205:02
7:23
-0:18
25K
15.53 mi11:57:501:54:327:2218:21
7:34
+0:11
30K
18.64 mi12:22:192:19:017:2724:29
7:53
+0:19
20M
20.00 mi12:32:392:29:217:2810:20
7:37
-0:16
21M
21.00 mi12:40:162:36:587:287:37
7:37
0:00
35K
21.75 mi12:45:412:42:237:285:25
7:14
-0:23
23M
23.00 mi12:54:552:51:377:289:14
7:22
+0:08
24M
24.00 mi13:02:062:58:487:277:11
7:11
-0:11
40K
24.85 mi13:08:113:04:537:266:05
7:07
-0:04
25.2M
25.20 mi13:10:483:07:307:262:37
7:35
+0:28
Finish
26.22 mi13:17:403:14:227:256:52
6:44
-0:51

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

6:44 /mi

Average Pace

7:25 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:06

55% of race

Time at Steady Pace

1:27:16

45% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:25 /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 mi10:25:3222:147:0922:14
7:09
#7224
10K
6.21 mi10:47:5044:327:1022:18
7:11
#7540
15K
9.32 mi11:10:351:07:177:1322:45
7:19
#7884
20K
12.43 mi11:34:271:31:097:2023:52
7:41
#8506
Half
13.11 mi11:39:291:36:117:205:02
7:23
#8544
25K
15.53 mi11:57:501:54:327:2218:21
7:34
#8617
30K
18.64 mi12:22:192:19:017:2724:29
7:53
#8807
20M
20.00 mi12:32:392:29:217:2810:20
7:37
#8698
21M
21.00 mi12:40:162:36:587:287:37
7:37
#8460
35K
21.75 mi12:45:412:42:237:285:25
7:14
#8391
23M
23.00 mi12:54:552:51:377:289:14
7:22
#8158
24M
24.00 mi13:02:062:58:487:277:11
7:11
#8016
40K
24.85 mi13:08:113:04:537:266:05
7:07
#7843
25.2M
25.20 mi13:10:483:07:307:262:37
7:35
#7763
Finish
26.22 mi13:17:403:14:227:256:52
6:44
#7546
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 mi7224644164418730(Top 33%)7379(Top 49%)7379(Top 140%)
10K6.21 mi3.10 mi7540-3166665-2246665-2247940(Top 30%)6896(Top 45%)6896(Top 130%)
15K9.32 mi3.11 mi7884-3446879-2146879-2148730(Top 33%)7379(Top 49%)7379(Top 140%)
20K12.43 mi3.11 mi8506-6227257-3787257-37810759(Top 40%)8447(Top 56%)8447(Top 160%)
Half13.11 mi0.68 mi8544-387285-287285-289145(Top 34%)7580(Top 50%)7580(Top 143%)
25K15.53 mi2.42 mi8617-737303-187303-189276(Top 35%)7591(Top 50%)7591(Top 144%)
30K18.64 mi3.11 mi8807-1907388-857388-859962(Top 37%)7800(Top 51%)7800(Top 148%)
20M20.00 mi1.36 mi8698+1097296+927296+927560(Top 28%)6306(Top 42%)6306(Top 119%)
21M21.00 mi1.00 mi8460+2387125+1717125+1715137(Top 19%)4563(Top 30%)4563(Top 86%)
35K21.75 mi0.75 mi8391+697074+517074+516767(Top 25%)5753(Top 38%)5753(Top 109%)
23M23.00 mi1.25 mi8158+2336903+1716903+1715731(Top 22%)5007(Top 33%)5007(Top 95%)
24M24.00 mi1.00 mi8016+1426796+1076796+1075664(Top 21%)4896(Top 32%)4896(Top 93%)
40K24.85 mi0.85 mi7843+1736666+1306666+1304466(Top 17%)3967(Top 26%)3967(Top 75%)
25.2M25.20 mi0.35 mi7763+806608+586608+584352(Top 16%)3822(Top 25%)3822(Top 72%)
Finish26.22 mi1.02 mi7546+2176448+1606448+1603747(Top 14%)3339(Top 22%)3339(Top 63%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

8730

Males

7379

M18-39

7379

5K→10K

3.1 - 6.2 mi

Top 30%
×5stories
+79ft-138ft

Overall

7940

Males

6896

M18-39

6896

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

8730

Males

7379

M18-39

7379

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10759

Males

8447

M18-39

8447

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9145

Males

7580

M18-39

7580

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9276

Males

7591

M18-39

7591

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

9962

Males

7800

M18-39

7800

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7560

Males

6306

M18-39

6306

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5137

Males

4563

M18-39

4563

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6767

Males

5753

M18-39

5753

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

5731

Males

5007

M18-39

5007

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5664

Males

4896

M18-39

4896

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4466

Males

3967

M18-39

3967

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4352

Males

3822

M18-39

3822

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3747

Males

3339

M18-39

3339

Passing Analysis

Category:
Athletes Passed
1710
Passed By
2032
Net Change
-322
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7224
5K → 10K114430-316#7224#7540
10K → 15K39383-344#7540#7884
15K → 20K28650-622#7884#8506
20K → Half1654-38#8506#8544
Half → 25K68141-73#8544#8617
25K → 30K115305-190#8617#8807
30K → 20M14233+109#8807#8698
20M → 21M2391+238#8698#8460
21M → 35K8213+69#8460#8391
35K → 23M2374+233#8391#8158
23M → 24M1519+142#8158#8016
24M → 40K1730+173#8016#7843
40K → 25.2M822+80#7843#7763
25.2M → Finish2247+217#7763#7546
TOTALS17102032-322
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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