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BOSTON MARATHON 2023

Mark John Yaco

Bib: 27193•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
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
11:19/mi
35:10
↑ 97↓ 3451.5%
10K· 6.21 mi
10:54/mi
1:09:03
↑ 79↓ 1380.4%
15K· 9.32 mi
11:13/mi
1:43:54
↑ 67↓ 78
20K· 12.43 mi
12:00/mi
2:21:12
↑ 106↓ 860.1%
Half· 13.11 mi
11:33/mi
2:29:05
↑ 19↓ 370.5%
25K· 15.53 mi
11:56/mi
2:58:01
↑ 66↓ 880.2%
30K· 18.64 mi
13:03/mi
3:38:35
↑ 181↓ 1480.2%
20M
11:23/mi
3:54:03
↑ 64↓ 500.2%
21M
11:39/mi
4:05:42
↑ 106↓ 241.6%
35K· 21.75 mi
9:47/mi
4:13:01
↑ 17↓ 861.7%
23M
10:08/mi
4:25:42
↑ 23↓ 630.6%
24M
9:42/mi
4:35:24
↓ 821.3%
40K· 24.85 mi
10:27/mi
4:44:20
↓ 200.3%
25.2M
11:19/mi
4:48:14
↑ 13↓ 160.2%
Finish· 26.22 mi
9:55/mi
4:58:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:29:05
Pace11:22 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:29:15
Pace11:23 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:4935:1011:1935:10
11:19
-
10K
6.21 mi12:26:421:09:0311:0733:53
10:54
-0:25
15K
9.32 mi13:01:331:43:5411:0934:51
11:13
+0:19
20K
12.43 mi13:38:512:21:1211:2237:18
12:00
+0:47
Half
13.11 mi13:46:442:29:0511:227:53
11:33
-0:27
25K
15.53 mi14:15:402:58:0111:2828:56
11:56
+0:23
30K
18.64 mi14:56:143:38:3511:4440:34
13:03
+1:07
20M
20.00 mi15:11:423:54:0311:4215:28
11:23
-1:40
21M
21.00 mi15:23:214:05:4211:4211:39
11:39
+0:16
35K
21.75 mi15:30:404:13:0111:387:19
9:47
-1:52
23M
23.00 mi15:43:214:25:4211:3312:41
10:08
+0:21
24M
24.00 mi15:53:034:35:2411:299:42
9:42
-0:26
40K
24.85 mi16:01:594:44:2011:268:56
10:27
+0:45
25.2M
25.20 mi16:05:534:48:1411:263:54
11:19
+0:52
Finish
26.22 mi16:15:594:58:2011:2310:06
9:55
-1:24

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

9:42 /mi

Average Pace

11:23 /mi

Slowest Pace

13:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

48:44

16% of race

Time at Steady Pace

2:22:48

48% of race

Time at Slower Pace

1:46:48

36% of race

Average Pace: 11:23 /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 mi11:52:4935:1011:1935:10
11:19
#26049
10K
6.21 mi12:26:421:09:0311:0733:53
10:54
#25735
15K
9.32 mi13:01:331:43:5411:0934:51
11:13
#25639
20K
12.43 mi13:38:512:21:1211:2237:18
12:00
#25644
Half
13.11 mi13:46:442:29:0511:227:53
11:33
#25657
25K
15.53 mi14:15:402:58:0111:2828:56
11:56
#25562
30K
18.64 mi14:56:143:38:3511:4440:34
13:03
#25567
20M
20.00 mi15:11:423:54:0311:4215:28
11:23
#25432
21M
21.00 mi15:23:214:05:4211:4211:39
11:39
#25315
35K
21.75 mi15:30:404:13:0111:387:19
9:47
#25213
23M
23.00 mi15:43:214:25:4211:3312:41
10:08
#25050
24M
24.00 mi15:53:034:35:2411:299:42
9:42
#24934
40K
24.85 mi16:01:594:44:2011:268:56
10:27
#24821
25.2M
25.20 mi16:05:534:48:1411:263:54
11:19
#24796
Finish
26.22 mi16:15:594:58:2011:2310:06
9:55
#24729
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi26049149441494425439(Top 96%)14711(Top 97%)14711(Top 653%)
10K6.21 mi3.10 mi25735+31414830+11414830+11425348(Top 95%)14689(Top 97%)14689(Top 652%)
15K9.32 mi3.11 mi25639+9614799+3114799+3125439(Top 96%)14711(Top 97%)14711(Top 653%)
20K12.43 mi3.11 mi25644-514787+1214787+1225659(Top 96%)14775(Top 97%)14775(Top 656%)
Half13.11 mi0.68 mi25657-1314790-314790-325530(Top 96%)14702(Top 97%)14702(Top 653%)
25K15.53 mi2.42 mi25562+9514746+4414746+4425097(Top 94%)14504(Top 96%)14504(Top 644%)
30K18.64 mi3.11 mi25567-514737+914737+925462(Top 96%)14618(Top 96%)14618(Top 649%)
20M20.00 mi1.36 mi25432+13514665+7214665+7223327(Top 88%)13611(Top 90%)13611(Top 604%)
21M21.00 mi1.00 mi25315+11714612+5314612+5322155(Top 83%)13051(Top 86%)13051(Top 580%)
35K21.75 mi0.75 mi25213+10214562+5014562+5020692(Top 78%)12347(Top 81%)12347(Top 548%)
23M23.00 mi1.25 mi25050+16314477+8514477+8520378(Top 77%)12197(Top 80%)12197(Top 542%)
24M24.00 mi1.00 mi24934+11614422+5514422+5519896(Top 75%)11966(Top 79%)11966(Top 531%)
40K24.85 mi0.85 mi24821+11314366+5614366+5621091(Top 79%)12407(Top 82%)12407(Top 551%)
25.2M25.20 mi0.35 mi24796+2514355+1114355+1121135(Top 79%)12455(Top 82%)12455(Top 553%)
Finish26.22 mi1.02 mi24729+6714319+3614319+3621512(Top 81%)12643(Top 83%)12643(Top 561%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

25439

Males

14711

M45-49

14711

5K→10K

3.1 - 6.2 mi

Top 95%
×5story building
+79ft-138ft

Overall

25348

Males

14689

M45-49

14689

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

25439

Males

14711

M45-49

14711

15K→20K

9.3 - 12.4 mi

Top 96%
×5story building
+106ft-86ft

Overall

25659

Males

14775

M45-49

14775

20K→Half

12.4 - 13.1 mi

Top 96%
×2story building
+19ft-37ft

Overall

25530

Males

14702

M45-49

14702

Half→25K

13.1 - 15.5 mi

Top 94%
×4story building
+66ft-88ft

Overall

25097

Males

14504

M45-49

14504

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

25462

Males

14618

M45-49

14618

30K→20M

18.6 - 20.0 mi

Top 88%
×5story building
+64ft-50ft

Overall

23327

Males

13611

M45-49

13611

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

22155

Males

13051

M45-49

13051

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

20692

Males

12347

M45-49

12347

35K→23M

21.8 - 23.0 mi

Top 77%
×5story building
+23ft-63ft

Overall

20378

Males

12197

M45-49

12197

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

19896

Males

11966

M45-49

11966

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

21091

Males

12407

M45-49

12407

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21135

Males

12455

M45-49

12455

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

21512

Males

12643

M45-49

12643

Passing Analysis

Category:
Athletes Passed
1597
Passed By
277
Net Change
+1320
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26049
5K → 10K33521+314#26049#25735
10K → 15K14347+96#25735#25639
15K → 20K8388-5#25639#25644
20K → Half1629-13#25644#25657
Half → 25K10813+95#25657#25562
25K → 30K6671-5#25562#25567
30K → 20M1350+135#25567#25432
20M → 21M1170+117#25432#25315
21M → 35K1020+102#25315#25213
35K → 23M1630+163#25213#25050
23M → 24M1193+116#25050#24934
24M → 40K1130+113#24934#24821
40K → 25.2M283+25#24821#24796
25.2M → Finish692+67#24796#24729
TOTALS1597277+1320
📊

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