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BOSTON MARATHON 2023

Giovanni Cao

Bib: 3815•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 8%
Masters (Masters Men)
#0 / 9891
Top 2%
Division (M40-44)
#0 / 2241
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:15
Rank: #1122
Start → 5K
19:15 | 6:12/mi
10K· 6.21 mi
38:40
Rank: #1259 (-137)
5K → 10K
19:25 | 6:15/mi
15K· 9.32 mi
58:18
Rank: #1400 (-141)
10K → 15K
19:38 | 6:19/mi
20K· 12.43 mi
1:18:05
Rank: #1440 (-40)
15K → 20K
19:47 | 6:22/mi
Half· 13.11 mi
1:22:22
Rank: #1448 (-8)
20K → Half
4:17 | 6:17/mi
25K· 15.53 mi
1:37:43
Rank: #1431 (+17)
Half → 25K
15:21 | 6:20/mi
30K· 18.64 mi
1:57:33
Rank: #1359 (+72)
25K → 30K
19:50 | 6:23/mi
20M
2:06:14
Rank: #1336 (+23)
30K → 20M
8:41 | 6:23/mi
21M
2:12:50
Rank: #1287 (+49)
20M → 21M
6:36 | 6:36/mi
35K· 21.75 mi
2:17:32
Rank: #1282 (+5)
21M → 35K
4:42 | 6:17/mi
23M
2:25:35
Rank: #1253 (+29)
35K → 23M
8:03 | 6:26/mi
24M
2:31:56
Rank: #1249 (+4)
23M → 24M
6:21 | 6:21/mi
40K· 24.85 mi
2:37:24
Rank: #1233 (+16)
24M → 40K
5:28 | 6:24/mi
25.2M
2:39:45
Rank: #1225 (+8)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:46:05
Rank: #1213 (+12)
25.2M → Finish
6:20 | 6:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:22
Pace6:17 /mi
2nd Half
Distance13.11 mi
Time1:23:43
Pace6:23 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:2719:156:1219:15
6:12
-
10K
6.21 mi10:39:5238:406:1319:25
6:15
+0:03
15K
9.32 mi10:59:3058:186:1519:38
6:19
+0:04
20K
12.43 mi11:19:171:18:056:1719:47
6:22
+0:03
Half
13.11 mi11:23:341:22:226:174:17
6:17
-0:05
25K
15.53 mi11:38:551:37:436:1715:21
6:20
+0:03
30K
18.64 mi11:58:451:57:336:1819:50
6:23
+0:03
20M
20.00 mi12:07:262:06:146:198:41
6:23
0:00
21M
21.00 mi12:14:022:12:506:206:36
6:36
+0:13
35K
21.75 mi12:18:442:17:326:194:42
6:17
-0:19
23M
23.00 mi12:26:472:25:356:208:03
6:26
+0:09
24M
24.00 mi12:33:082:31:566:206:21
6:21
-0:05
40K
24.85 mi12:38:362:37:246:205:28
6:24
+0:03
25.2M
25.20 mi12:40:572:39:456:202:21
6:49
+0:25
Finish
26.22 mi12:47:172:46:056:206:20
6:13
-0:36

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

6:12 /mi

Average Pace

6:20 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:08

95% of race

Time at Steady Pace

8:57

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:20 /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 mi10:20:2719:156:1219:15
6:12
#1122
10K
6.21 mi10:39:5238:406:1319:25
6:15
#1259
15K
9.32 mi10:59:3058:186:1519:38
6:19
#1400
20K
12.43 mi11:19:171:18:056:1719:47
6:22
#1440
Half
13.11 mi11:23:341:22:226:174:17
6:17
#1448
25K
15.53 mi11:38:551:37:436:1715:21
6:20
#1431
30K
18.64 mi11:58:451:57:336:1819:50
6:23
#1359
20M
20.00 mi12:07:262:06:146:198:41
6:23
#1336
21M
21.00 mi12:14:022:12:506:206:36
6:36
#1287
35K
21.75 mi12:18:442:17:326:194:42
6:17
#1282
23M
23.00 mi12:26:472:25:356:208:03
6:26
#1253
24M
24.00 mi12:33:082:31:566:206:21
6:21
#1249
40K
24.85 mi12:38:362:37:246:205:28
6:24
#1233
25.2M
25.20 mi12:40:572:39:456:202:21
6:49
#1225
Finish
26.22 mi12:47:172:46:056:206:20
6:13
#1213
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1122106010601728(Top 6%)1654(Top 11%)1654(Top 74%)
10K6.21 mi3.10 mi1259-1371194-1341194-1341547(Top 6%)1479(Top 10%)1479(Top 66%)
15K9.32 mi3.11 mi1400-1411335-1411335-1411728(Top 6%)1654(Top 11%)1654(Top 74%)
20K12.43 mi3.11 mi1440-401373-381373-381659(Top 6%)1588(Top 10%)1588(Top 71%)
Half13.11 mi0.68 mi1448-81381-81381-81662(Top 6%)1592(Top 10%)1592(Top 71%)
25K15.53 mi2.42 mi1431+171368+131368+131444(Top 5%)1381(Top 9%)1381(Top 62%)
30K18.64 mi3.11 mi1359+721297+711297+711166(Top 4%)1111(Top 7%)1111(Top 50%)
20M20.00 mi1.36 mi1336+231276+211276+211105(Top 4%)1059(Top 7%)1059(Top 47%)
21M21.00 mi1.00 mi1287+491231+451231+45878(Top 3%)832(Top 5%)832(Top 37%)
35K21.75 mi0.75 mi1282+51223+81223+81495(Top 6%)1419(Top 9%)1419(Top 63%)
23M23.00 mi1.25 mi1253+291196+271196+271194(Top 4%)1128(Top 7%)1128(Top 50%)
24M24.00 mi1.00 mi1249+41192+41192+41495(Top 6%)1414(Top 9%)1414(Top 63%)
40K24.85 mi0.85 mi1233+161176+161176+161180(Top 4%)1115(Top 7%)1115(Top 50%)
25.2M25.20 mi0.35 mi1225+81168+81168+81188(Top 4%)1127(Top 7%)1127(Top 50%)
Finish26.22 mi1.02 mi1213+121156+121156+121317(Top 5%)1247(Top 8%)1247(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1728

Males

1654

M40-44

1654

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1547

Males

1479

M40-44

1479

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1728

Males

1654

M40-44

1654

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1659

Males

1588

M40-44

1588

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1662

Males

1592

M40-44

1592

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1444

Males

1381

M40-44

1381

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1166

Males

1111

M40-44

1111

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1105

Males

1059

M40-44

1059

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

878

Males

832

M40-44

832

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1495

Males

1419

M40-44

1419

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1194

Males

1128

M40-44

1128

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1495

Males

1414

M40-44

1414

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1180

Males

1115

M40-44

1115

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1188

Males

1127

M40-44

1127

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1317

Males

1247

M40-44

1247

Passing Analysis

Category:
Athletes Passed
416
Passed By
507
Net Change
-91
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1122
5K → 10K17154-137#1122#1259
10K → 15K12153-141#1259#1400
15K → 20K3474-40#1400#1440
20K → Half311-8#1440#1448
Half → 25K4225+17#1448#1431
25K → 30K8614+72#1431#1359
30K → 20M3310+23#1359#1336
20M → 21M523+49#1336#1287
21M → 35K1813+5#1287#1282
35K → 23M367+29#1282#1253
23M → 24M2218+4#1253#1249
24M → 40K2711+16#1249#1233
40K → 25.2M124+8#1233#1225
25.2M → Finish2210+12#1225#1213
TOTALS416507-91
📊

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