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BOSTON MARATHON 2023

Mariusz Stafiej

Bib: 13371•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
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
7:58/mi
24:46
↑ 97↓ 3451.5%
10K· 6.21 mi
8:10/mi
50:07
↑ 79↓ 1380.4%
15K· 9.32 mi
8:40/mi
1:17:03
↑ 67↓ 78
20K· 12.43 mi
9:36/mi
1:46:51
↑ 106↓ 860.1%
Half· 13.11 mi
9:36/mi
1:53:24
↑ 19↓ 370.5%
25K· 15.53 mi
10:14/mi
2:18:12
↑ 66↓ 880.2%
30K· 18.64 mi
11:17/mi
2:53:16
↑ 181↓ 1480.2%
20M
11:46/mi
3:09:15
↑ 64↓ 500.2%
21M
13:15/mi
3:22:30
↑ 106↓ 241.6%
35K· 21.75 mi
11:34/mi
3:31:09
↑ 17↓ 861.7%
23M
12:26/mi
3:46:43
↑ 23↓ 630.6%
24M
11:43/mi
3:58:26
↓ 821.3%
40K· 24.85 mi
11:56/mi
4:08:38
↓ 200.3%
25.2M
12:54/mi
4:13:05
↑ 13↓ 160.2%
Finish· 26.22 mi
10:35/mi
4:23:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:24
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:30:28
Pace11:29 /mi
📊Positive Split: 32.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4424:467:5824:46
7:58
-
10K
6.21 mi11:18:0550:078:0425:21
8:10
+0:12
15K
9.32 mi11:45:011:17:038:1626:56
8:40
+0:30
20K
12.43 mi12:14:491:46:518:3629:48
9:36
+0:56
Half
13.11 mi12:21:221:53:248:396:33
9:36
0:00
25K
15.53 mi12:46:102:18:128:5424:48
10:14
+0:38
30K
18.64 mi13:21:142:53:169:1835:04
11:17
+1:03
20M
20.00 mi13:37:133:09:159:2815:59
11:46
+0:29
21M
21.00 mi13:50:283:22:309:3913:15
13:15
+1:29
35K
21.75 mi13:59:073:31:099:438:39
11:34
-1:41
23M
23.00 mi14:14:413:46:439:5115:34
12:26
+0:52
24M
24.00 mi14:26:243:58:269:5611:43
11:43
-0:43
40K
24.85 mi14:36:364:08:3810:0010:12
11:56
+0:13
25.2M
25.20 mi14:41:034:13:0510:034:27
12:54
+0:58
Finish
26.22 mi14:51:504:23:5210:0410:47
10:35
-2:19

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

7:58 /mi

Average Pace

10:04 /mi

Slowest Pace

13:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:12

52% of race

Time at Steady Pace

1:32:24

35% of race

Time at Slower Pace

33:16

13% of race

Average Pace: 10:04 /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 mi10:52:4424:467:5824:46
7:58
#13811
10K
6.21 mi11:18:0550:078:0425:21
8:10
#14863
15K
9.32 mi11:45:011:17:038:1626:56
8:40
#16284
20K
12.43 mi12:14:491:46:518:3629:48
9:36
#18199
Half
13.11 mi12:21:221:53:248:396:33
9:36
#18515
25K
15.53 mi12:46:102:18:128:5424:48
10:14
#19603
30K
18.64 mi13:21:142:53:169:1835:04
11:17
#20805
20M
20.00 mi13:37:133:09:159:2815:59
11:46
#21166
21M
21.00 mi13:50:283:22:309:3913:15
13:15
#21479
35K
21.75 mi13:59:073:31:099:438:39
11:34
#21631
23M
23.00 mi14:14:413:46:439:5115:34
12:26
#21895
24M
24.00 mi14:26:243:58:269:5611:43
11:43
#22027
40K
24.85 mi14:36:364:08:3810:0010:12
11:56
#22117
25.2M
25.20 mi14:41:034:13:0510:034:27
12:54
#22151
Finish
26.22 mi14:51:504:23:5210:0410:47
10:35
#22197
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi138119892989218830(Top 71%)11816(Top 78%)11816(Top 831%)
10K6.21 mi3.10 mi14863-105210280-38810280-38815979(Top 60%)10699(Top 70%)10699(Top 752%)
15K9.32 mi3.11 mi16284-142110809-52910809-52918830(Top 71%)11816(Top 78%)11816(Top 831%)
20K12.43 mi3.11 mi18199-191511548-73911548-73921836(Top 82%)13110(Top 86%)13110(Top 922%)
Half13.11 mi0.68 mi18515-31611686-13811686-13822356(Top 84%)13344(Top 88%)13344(Top 938%)
25K15.53 mi2.42 mi19603-108812097-41112097-41122676(Top 85%)13447(Top 89%)13447(Top 946%)
30K18.64 mi3.11 mi20805-120212622-52512622-52523548(Top 88%)13768(Top 91%)13768(Top 968%)
20M20.00 mi1.36 mi21166-36112751-12912751-12923894(Top 90%)13850(Top 91%)13850(Top 974%)
21M21.00 mi1.00 mi21479-31312890-13912890-13924344(Top 91%)14054(Top 93%)14054(Top 988%)
35K21.75 mi0.75 mi21631-15212947-5712947-5724177(Top 91%)13936(Top 92%)13936(Top 980%)
23M23.00 mi1.25 mi21895-26413061-11413061-11424507(Top 92%)14091(Top 93%)14091(Top 991%)
24M24.00 mi1.00 mi22027-13213112-5113112-5124151(Top 91%)13883(Top 91%)13883(Top 976%)
40K24.85 mi0.85 mi22117-9013142-3013142-3023799(Top 89%)13693(Top 90%)13693(Top 963%)
25.2M25.20 mi0.35 mi22151-3413153-1113153-1123836(Top 90%)13704(Top 90%)13704(Top 964%)
Finish26.22 mi1.02 mi22197-4613169-1613169-1623164(Top 87%)13414(Top 88%)13414(Top 943%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18830

Males

11816

M55-59

11816

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

15979

Males

10699

M55-59

10699

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18830

Males

11816

M55-59

11816

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

21836

Males

13110

M55-59

13110

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

22356

Males

13344

M55-59

13344

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

22676

Males

13447

M55-59

13447

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

23548

Males

13768

M55-59

13768

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

23894

Males

13850

M55-59

13850

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

24344

Males

14054

M55-59

14054

21M→35K

21.0 - 21.8 mi

Top 91%
×7story building
+17ft-86ft

Overall

24177

Males

13936

M55-59

13936

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

24507

Males

14091

M55-59

14091

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

24151

Males

13883

M55-59

13883

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

23799

Males

13693

M55-59

13693

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

23836

Males

13704

M55-59

13704

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

23164

Males

13414

M55-59

13414

Passing Analysis

Category:
Athletes Passed
197
Passed By
8583
Net Change
-8386
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13811
5K → 10K431095-1052#13811#14863
10K → 15K131434-1421#14863#16284
15K → 20K101925-1915#16284#18199
20K → Half3319-316#18199#18515
Half → 25K91097-1088#18515#19603
25K → 30K161218-1202#19603#20805
30K → 20M16377-361#20805#21166
20M → 21M13326-313#21166#21479
21M → 35K9161-152#21479#21631
35K → 23M12276-264#21631#21895
23M → 24M15147-132#21895#22027
24M → 40K11101-90#22027#22117
40K → 25.2M1044-34#22117#22151
25.2M → Finish1763-46#22151#22197
TOTALS1978583-8386
📊

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