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BOSTON MARATHON 2023

Carl St-Jacques

Bib: 12462•M

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 30%
Gender (Male)
#0 / 15176
Top 45%
Masters (Masters Men)
#0 / 9891
Top 32%
Division (M55-59)
#0 / 1422
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:16
Rank: #9518
Start → 5K
23:16 | 7:29/mi
10K· 6.21 mi
45:41
Rank: #8820 (+698)
5K → 10K
22:25 | 7:13/mi
15K· 9.32 mi
1:08:10
Rank: #8553 (+267)
10K → 15K
22:29 | 7:14/mi
20K· 12.43 mi
1:31:16
Rank: #8582 (-29)
15K → 20K
23:06 | 7:26/mi
Half· 13.11 mi
1:36:06
Rank: #8486 (+96)
20K → Half
4:50 | 7:05/mi
25K· 15.53 mi
1:53:43
Rank: #8218 (+268)
Half → 25K
17:37 | 7:16/mi
30K· 18.64 mi
2:17:11
Rank: #8082 (+136)
25K → 30K
23:28 | 7:33/mi
20M
2:27:29
Rank: #7966 (+116)
30K → 20M
10:18 | 7:35/mi
21M
2:35:49
Rank: #8030 (-64)
20M → 21M
8:20 | 8:20/mi
35K· 21.75 mi
2:41:20
Rank: #7998 (+32)
21M → 35K
5:31 | 7:22/mi
23M
2:50:57
Rank: #7937 (+61)
35K → 23M
9:37 | 7:41/mi
24M
2:58:35
Rank: #7951 (-14)
23M → 24M
7:38 | 7:38/mi
40K· 24.85 mi
3:05:12
Rank: #7931 (+20)
24M → 40K
6:37 | 7:44/mi
25.2M
3:08:09
Rank: #7949 (-18)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:16:08
Rank: #8063 (-114)
25.2M → Finish
7:59 | 7:50/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:06
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:40:02
Pace7:38 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4523:167:2923:16
7:29
-
10K
6.21 mi11:13:1045:417:2122:25
7:13
-0:16
15K
9.32 mi11:35:391:08:107:1922:29
7:14
+0:01
20K
12.43 mi11:58:451:31:167:2123:06
7:26
+0:12
Half
13.11 mi12:03:351:36:067:204:50
7:05
-0:21
25K
15.53 mi12:21:121:53:437:1917:37
7:16
+0:11
30K
18.64 mi12:44:402:17:117:2223:28
7:33
+0:17
20M
20.00 mi12:54:582:27:297:2210:18
7:35
+0:02
21M
21.00 mi13:03:182:35:497:258:20
8:20
+0:45
35K
21.75 mi13:08:492:41:207:255:31
7:22
-0:58
23M
23.00 mi13:18:262:50:577:269:37
7:41
+0:19
24M
24.00 mi13:26:042:58:357:267:38
7:38
-0:03
40K
24.85 mi13:32:413:05:127:276:37
7:44
+0:06
25.2M
25.20 mi13:35:383:08:097:282:57
8:33
+0:49
Finish
26.22 mi13:43:373:16:087:297:59
7:50
-0:43

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

7:05 /mi

Average Pace

7:29 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:07:21

34% of race

Time at Steady Pace

1:49:31

56% of race

Time at Slower Pace

19:16

10% of race

Average Pace: 7:29 /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 mi10:50:4523:167:2923:16
7:29
#9518
10K
6.21 mi11:13:1045:417:2122:25
7:13
#8820
15K
9.32 mi11:35:391:08:107:1922:29
7:14
#8553
20K
12.43 mi11:58:451:31:167:2123:06
7:26
#8582
Half
13.11 mi12:03:351:36:067:204:50
7:05
#8486
25K
15.53 mi12:21:121:53:437:1917:37
7:16
#8218
30K
18.64 mi12:44:402:17:117:2223:28
7:33
#8082
20M
20.00 mi12:54:582:27:297:2210:18
7:35
#7966
21M
21.00 mi13:03:182:35:497:258:20
8:20
#8030
35K
21.75 mi13:08:492:41:207:255:31
7:22
#7998
23M
23.00 mi13:18:262:50:577:269:37
7:41
#7937
24M
24.00 mi13:26:042:58:357:267:38
7:38
#7951
40K
24.85 mi13:32:413:05:127:276:37
7:44
#7931
25.2M
25.20 mi13:35:383:08:097:282:57
8:33
#7949
Finish
26.22 mi13:43:373:16:087:297:59
7:50
#8063
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi9518787978798052(Top 30%)6955(Top 46%)6955(Top 489%)
10K6.21 mi3.10 mi8820+6987470+4097470+4098206(Top 31%)7084(Top 47%)7084(Top 498%)
15K9.32 mi3.11 mi8553+2677301+1697301+1698052(Top 30%)6955(Top 46%)6955(Top 489%)
20K12.43 mi3.11 mi8582-297298+37298+38779(Top 33%)7361(Top 49%)7361(Top 518%)
Half13.11 mi0.68 mi8486+967245+537245+537067(Top 27%)6284(Top 41%)6284(Top 442%)
25K15.53 mi2.42 mi8218+2687051+1947051+1947064(Top 27%)6204(Top 41%)6204(Top 436%)
30K18.64 mi3.11 mi8082+1366922+1296922+1297599(Top 29%)6451(Top 43%)6451(Top 454%)
20M20.00 mi1.36 mi7966+1166838+846838+847350(Top 28%)6188(Top 41%)6188(Top 435%)
21M21.00 mi1.00 mi8030-646860-226860-229395(Top 35%)7282(Top 48%)7282(Top 512%)
35K21.75 mi0.75 mi7998+326826+346826+347622(Top 29%)6264(Top 41%)6264(Top 441%)
23M23.00 mi1.25 mi7937+616765+616765+617619(Top 29%)6195(Top 41%)6195(Top 436%)
24M24.00 mi1.00 mi7951-146752+136752+138599(Top 32%)6666(Top 44%)6666(Top 469%)
40K24.85 mi0.85 mi7931+206725+276725+278202(Top 31%)6366(Top 42%)6366(Top 448%)
25.2M25.20 mi0.35 mi7949-186727-26727-29790(Top 37%)7176(Top 47%)7176(Top 505%)
Finish26.22 mi1.02 mi8063-1146778-516778-5110897(Top 41%)7734(Top 51%)7734(Top 544%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

8052

Males

6955

M55-59

6955

5K→10K

3.1 - 6.2 mi

Top 31%
×5stories
+79ft-138ft

Overall

8206

Males

7084

M55-59

7084

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

8052

Males

6955

M55-59

6955

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

8779

Males

7361

M55-59

7361

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7067

Males

6284

M55-59

6284

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7064

Males

6204

M55-59

6204

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

7599

Males

6451

M55-59

6451

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7350

Males

6188

M55-59

6188

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9395

Males

7282

M55-59

7282

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

7622

Males

6264

M55-59

6264

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

7619

Males

6195

M55-59

6195

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

8599

Males

6666

M55-59

6666

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8202

Males

6366

M55-59

6366

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9790

Males

7176

M55-59

7176

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

10897

Males

7734

M55-59

7734

Passing Analysis

Category:
Athletes Passed
2293
Passed By
838
Net Change
+1455
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9518
5K → 10K75254+698#9518#8820
10K → 15K30235+267#8820#8553
15K → 20K127156-29#8553#8582
20K → Half1004+96#8582#8486
Half → 25K2779+268#8486#8218
25K → 30K19559+136#8218#8082
30K → 20M13923+116#8082#7966
20M → 21M57121-64#7966#8030
21M → 35K5725+32#8030#7998
35K → 23M11049+61#7998#7937
23M → 24M6175-14#7937#7951
24M → 40K6444+20#7951#7931
40K → 25.2M2341-18#7931#7949
25.2M → Finish29143-114#7949#8063
TOTALS2293838+1455
📊

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