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BOSTON MARATHON 2023

Mark St. Cyr

Bib: 19565•M

LA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Top 24%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:02/mi
24:57
↑ 97↓ 3451.5%
10K· 6.21 mi
7:58/mi
49:42
↑ 79↓ 1380.4%
15K· 9.32 mi
8:08/mi
1:14:57
↑ 67↓ 78
20K· 12.43 mi
8:19/mi
1:40:48
↑ 106↓ 860.1%
Half· 13.11 mi
8:12/mi
1:46:24
↑ 19↓ 370.5%
25K· 15.53 mi
8:15/mi
2:06:25
↑ 66↓ 880.2%
30K· 18.64 mi
8:38/mi
2:33:13
↑ 181↓ 1480.2%
20M
8:37/mi
2:44:56
↑ 64↓ 500.2%
21M
9:10/mi
2:54:06
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:59:55
↑ 17↓ 861.7%
23M
8:13/mi
3:10:12
↑ 23↓ 630.6%
24M
7:53/mi
3:18:05
↓ 821.3%
40K· 24.85 mi
8:10/mi
3:25:04
↓ 200.3%
25.2M
8:42/mi
3:28:04
↑ 13↓ 160.2%
Finish· 26.22 mi
7:53/mi
3:36:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:24
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:49:42
Pace8:22 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2924:578:0224:57
8:02
-
10K
6.21 mi11:41:1449:428:0024:45
7:58
-0:04
15K
9.32 mi12:06:291:14:578:0225:15
8:08
+0:10
20K
12.43 mi12:32:201:40:488:0725:51
8:19
+0:11
Half
13.11 mi12:37:561:46:248:075:36
8:12
-0:07
25K
15.53 mi12:57:572:06:258:0820:01
8:15
+0:03
30K
18.64 mi13:24:452:33:138:1326:48
8:38
+0:23
20M
20.00 mi13:36:282:44:568:1511:43
8:37
-0:01
21M
21.00 mi13:45:382:54:068:179:10
9:10
+0:33
35K
21.75 mi13:51:272:59:558:165:49
7:46
-1:24
23M
23.00 mi14:01:443:10:128:1610:17
8:13
+0:27
24M
24.00 mi14:09:373:18:058:157:53
7:53
-0:20
40K
24.85 mi14:16:363:25:048:156:59
8:10
+0:17
25.2M
25.20 mi14:19:363:28:048:153:00
8:42
+0:32
Finish
26.22 mi14:27:383:36:068:158:02
7:53
-0:49

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

7:46 /mi

Average Pace

8:15 /mi

Slowest Pace

9:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:25

77% of race

Time at Steady Pace

41:31

19% of race

Time at Slower Pace

9:10

4% of race

Average Pace: 8:15 /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 mi11:16:2924:578:0224:57
8:02
#14222
10K
6.21 mi11:41:1449:428:0024:45
7:58
#14371
15K
9.32 mi12:06:291:14:578:0225:15
8:08
#14668
20K
12.43 mi12:32:201:40:488:0725:51
8:19
#14947
Half
13.11 mi12:37:561:46:248:075:36
8:12
#14986
25K
15.53 mi12:57:572:06:258:0820:01
8:15
#14901
30K
18.64 mi13:24:452:33:138:1326:48
8:38
#14943
20M
20.00 mi13:36:282:44:568:1511:43
8:37
#14885
21M
21.00 mi13:45:382:54:068:179:10
9:10
#14819
35K
21.75 mi13:51:272:59:558:165:49
7:46
#14662
23M
23.00 mi14:01:443:10:128:1610:17
8:13
#14467
24M
24.00 mi14:09:373:18:058:157:53
7:53
#14275
40K
24.85 mi14:16:363:25:048:156:59
8:10
#14133
25.2M
25.20 mi14:19:363:28:048:153:00
8:42
#14066
Finish
26.22 mi14:27:383:36:068:158:02
7:53
#13937
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi14222100391003915333(Top 58%)10445(Top 69%)10445(Top 941%)
10K6.21 mi3.10 mi14371-14910085-4610085-4614529(Top 55%)10138(Top 67%)10138(Top 913%)
15K9.32 mi3.11 mi14668-29710192-10710192-10715333(Top 58%)10445(Top 69%)10445(Top 941%)
20K12.43 mi3.11 mi14947-27910277-8510277-8515715(Top 59%)10521(Top 69%)10521(Top 948%)
Half13.11 mi0.68 mi14986-3910290-1310290-1315794(Top 59%)10582(Top 70%)10582(Top 953%)
25K15.53 mi2.42 mi14901+8510233+5710233+5714622(Top 55%)10001(Top 66%)10001(Top 901%)
30K18.64 mi3.11 mi14943-4210215+1810215+1815058(Top 57%)10072(Top 66%)10072(Top 907%)
20M20.00 mi1.36 mi14885+5810170+4510170+4514377(Top 54%)9723(Top 64%)9723(Top 876%)
21M21.00 mi1.00 mi14819+6610125+4510125+4514285(Top 54%)9618(Top 63%)9618(Top 866%)
35K21.75 mi0.75 mi14662+15710038+8710038+8710474(Top 39%)7879(Top 52%)7879(Top 710%)
23M23.00 mi1.25 mi14467+1959936+1029936+10211272(Top 42%)8121(Top 54%)8121(Top 732%)
24M24.00 mi1.00 mi14275+1929839+979839+9710408(Top 39%)7617(Top 50%)7617(Top 686%)
40K24.85 mi0.85 mi14133+1429764+759764+7511130(Top 42%)7906(Top 52%)7906(Top 712%)
25.2M25.20 mi0.35 mi14066+679730+349730+3410736(Top 40%)7693(Top 51%)7693(Top 693%)
Finish26.22 mi1.02 mi13937+1299664+669664+6611281(Top 42%)7938(Top 52%)7938(Top 715%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

15333

Males

10445

M60-64

10445

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

14529

Males

10138

M60-64

10138

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

15333

Males

10445

M60-64

10445

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15715

Males

10521

M60-64

10521

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

15794

Males

10582

M60-64

10582

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

14622

Males

10001

M60-64

10001

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15058

Males

10072

M60-64

10072

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

14377

Males

9723

M60-64

9723

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

14285

Males

9618

M60-64

9618

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10474

Males

7879

M60-64

7879

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11272

Males

8121

M60-64

8121

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

10408

Males

7617

M60-64

7617

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11130

Males

7906

M60-64

7906

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10736

Males

7693

M60-64

7693

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11281

Males

7938

M60-64

7938

Passing Analysis

Category:
Athletes Passed
1926
Passed By
1641
Net Change
+285
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14222
5K → 10K217366-149#14222#14371
10K → 15K107404-297#14371#14668
15K → 20K104383-279#14668#14947
20K → Half2564-39#14947#14986
Half → 25K17085+85#14986#14901
25K → 30K153195-42#14901#14943
30K → 20M10648+58#14943#14885
20M → 21M11751+66#14885#14819
21M → 35K1614+157#14819#14662
35K → 23M2016+195#14662#14467
23M → 24M1986+192#14467#14275
24M → 40K1519+142#14275#14133
40K → 25.2M725+67#14133#14066
25.2M → Finish14415+129#14066#13937
TOTALS19261641+285
📊

Passing Visuals

Category:
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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