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BOSTON MARATHON 2023

William Gasparrini

Bib: 2253•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 7%
Division (M18-39)
#0 / 5285
Top 17%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:40
Rank: #1536
Start → 5K
19:40 | 6:20/mi
10K· 6.21 mi
39:28
Rank: #1788 (-252)
5K → 10K
19:48 | 6:22/mi
15K· 9.32 mi
59:14
Rank: #1809 (-21)
10K → 15K
19:46 | 6:22/mi
20K· 12.43 mi
1:18:57
Rank: #1730 (+79)
15K → 20K
19:43 | 6:21/mi
Half· 13.11 mi
1:23:17
Rank: #1744 (-14)
20K → Half
4:20 | 6:21/mi
25K· 15.53 mi
1:38:41
Rank: #1713 (+31)
Half → 25K
15:24 | 6:21/mi
30K· 18.64 mi
1:58:22
Rank: #1538 (+175)
25K → 30K
19:41 | 6:20/mi
20M
2:06:50
Rank: #1446 (+92)
30K → 20M
8:28 | 6:14/mi
21M
2:13:24
Rank: #1385 (+61)
20M → 21M
6:34 | 6:34/mi
35K· 21.75 mi
2:17:55
Rank: #1349 (+36)
21M → 35K
4:31 | 6:02/mi
23M
2:25:43
Rank: #1279 (+70)
35K → 23M
7:48 | 6:14/mi
24M
2:31:47
Rank: #1218 (+61)
23M → 24M
6:04 | 6:04/mi
40K· 24.85 mi
2:37:04
Rank: #1178 (+40)
24M → 40K
5:17 | 6:11/mi
25.2M
2:39:17
Rank: #1153 (+25)
40K → 25.2M
2:13 | 6:26/mi
Finish· 26.22 mi
2:45:12
Rank: #1105 (+48)
25.2M → Finish
5:55 | 5:48/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:23:17
Pace6:21 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:21:55
Pace6:15 /mi
📊Negative Split: 1.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:2219:406:2019:40
6:20
-
10K
6.21 mi10:40:1039:286:2119:48
6:22
+0:02
15K
9.32 mi10:59:5659:146:2119:46
6:22
0:00
20K
12.43 mi11:19:391:18:576:2119:43
6:21
-0:01
Half
13.11 mi11:23:591:23:176:214:20
6:21
0:00
25K
15.53 mi11:39:231:38:416:2115:24
6:21
0:00
30K
18.64 mi11:59:041:58:226:2119:41
6:20
-0:01
20M
20.00 mi12:07:322:06:506:208:28
6:14
-0:06
21M
21.00 mi12:14:062:13:246:216:34
6:34
+0:20
35K
21.75 mi12:18:372:17:556:204:31
6:02
-0:32
23M
23.00 mi12:26:252:25:436:207:48
6:14
+0:12
24M
24.00 mi12:32:292:31:476:196:04
6:04
-0:10
40K
24.85 mi12:37:462:37:046:195:17
6:11
+0:07
25.2M
25.20 mi12:39:592:39:176:192:13
6:26
+0:15
Finish
26.22 mi12:45:542:45:126:185:55
5:48
-0:38

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

5:48 /mi

Average Pace

6:18 /mi

Slowest Pace

6:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:25

95% of race

Time at Steady Pace

8:47

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:18 /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 mi10:20:2219:406:2019:40
6:20
#1536
10K
6.21 mi10:40:1039:286:2119:48
6:22
#1788
15K
9.32 mi10:59:5659:146:2119:46
6:22
#1809
20K
12.43 mi11:19:391:18:576:2119:43
6:21
#1730
Half
13.11 mi11:23:591:23:176:214:20
6:21
#1744
25K
15.53 mi11:39:231:38:416:2115:24
6:21
#1713
30K
18.64 mi11:59:041:58:226:2119:41
6:20
#1538
20M
20.00 mi12:07:322:06:506:208:28
6:14
#1446
21M
21.00 mi12:14:062:13:246:216:34
6:34
#1385
35K
21.75 mi12:18:372:17:556:204:31
6:02
#1349
23M
23.00 mi12:26:252:25:436:207:48
6:14
#1279
24M
24.00 mi12:32:292:31:476:196:04
6:04
#1218
40K
24.85 mi12:37:462:37:046:195:17
6:11
#1178
25.2M
25.20 mi12:39:592:39:176:192:13
6:26
#1153
Finish
26.22 mi12:45:542:45:126:185:55
5:48
#1105
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1536146314631914(Top 7%)1832(Top 12%)1832(Top 35%)
10K6.21 mi3.10 mi1788-2521710-2471710-2472084(Top 8%)1995(Top 13%)1995(Top 38%)
15K9.32 mi3.11 mi1809-211730-201730-201914(Top 7%)1832(Top 12%)1832(Top 35%)
20K12.43 mi3.11 mi1730+791656+741656+741581(Top 6%)1511(Top 10%)1511(Top 29%)
Half13.11 mi0.68 mi1744-141668-121668-121947(Top 7%)1870(Top 12%)1870(Top 35%)
25K15.53 mi2.42 mi1713+311640+281640+281519(Top 6%)1455(Top 10%)1455(Top 28%)
30K18.64 mi3.11 mi1538+1751469+1711469+1711020(Top 4%)969(Top 6%)969(Top 18%)
20M20.00 mi1.36 mi1446+921382+871382+87725(Top 3%)686(Top 5%)686(Top 13%)
21M21.00 mi1.00 mi1385+611323+591323+59795(Top 3%)752(Top 5%)752(Top 14%)
35K21.75 mi0.75 mi1349+361288+351288+35784(Top 3%)743(Top 5%)743(Top 14%)
23M23.00 mi1.25 mi1279+701221+671221+67676(Top 3%)638(Top 4%)638(Top 12%)
24M24.00 mi1.00 mi1218+611162+591162+59691(Top 3%)654(Top 4%)654(Top 12%)
40K24.85 mi0.85 mi1178+401124+381124+38630(Top 2%)595(Top 4%)595(Top 11%)
25.2M25.20 mi0.35 mi1153+251099+251099+25413(Top 2%)391(Top 3%)391(Top 7%)
Finish26.22 mi1.02 mi1105+481052+471052+47394(Top 1%)375(Top 2%)375(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1914

Males

1832

M18-39

1832

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2084

Males

1995

M18-39

1995

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1914

Males

1832

M18-39

1832

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1581

Males

1511

M18-39

1511

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1947

Males

1870

M18-39

1870

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1519

Males

1455

M18-39

1455

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1020

Males

969

M18-39

969

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

725

Males

686

M18-39

686

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

795

Males

752

M18-39

752

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

784

Males

743

M18-39

743

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

676

Males

638

M18-39

638

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

691

Males

654

M18-39

654

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

630

Males

595

M18-39

595

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

413

Males

391

M18-39

391

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2stories
+22ft-21ft

Overall

394

Males

375

M18-39

375

Passing Analysis

Category:
Athletes Passed
828
Passed By
397
Net Change
+431
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1536
5K → 10K19271-252#1536#1788
10K → 15K4465-21#1788#1809
15K → 20K9112+79#1809#1730
20K → Half721-14#1730#1744
Half → 25K4716+31#1744#1713
25K → 30K1783+175#1713#1538
30K → 20M931+92#1538#1446
20M → 21M643+61#1446#1385
21M → 35K371+36#1385#1349
35K → 23M711+70#1349#1279
23M → 24M632+61#1279#1218
24M → 40K400+40#1218#1178
40K → 25.2M261+25#1178#1153
25.2M → Finish480+48#1153#1105
TOTALS828397+431
📊

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