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BOSTON MARATHON 2023

Tom Sieniewicz

Bib: 24755•M

MA

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
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:55
Rank: #24149
Start → 5K
10:16/mi
31:55 split
10K· 6.21 mi
1:03:56
Rank: #24241 (-92)
5K → 10K
10:18/mi
32:01 split
15K· 9.32 mi
1:38:12
Rank: #24688 (-447)
10K → 15K
11:02/mi
34:16 split
20K· 12.43 mi
2:12:14
Rank: #24663 (+25)
15K → 20K
10:57/mi
34:02 split
Half· 13.11 mi
2:20:06
Rank: #24728 (-65)
20K → Half
11:32/mi
7:52 split
25K· 15.53 mi
2:48:35
Rank: #24781 (-53)
Half → 25K
11:45/mi
28:29 split
30K· 18.64 mi
3:28:08
Rank: #24935 (-154)
25K → 30K
12:44/mi
39:33 split
20M
3:45:09
Rank: #24924 (+11)
30K → 20M
12:31/mi
17:01 split
21M
3:58:02
Rank: #24866 (+58)
20M → 21M
12:53/mi
12:53 split
35K· 21.75 mi
4:06:31
Rank: #24835 (+31)
21M → 35K
11:20/mi
8:29 split
23M
4:21:38
Rank: #24819 (+16)
35K → 23M
12:04/mi
15:07 split
24M
4:33:03
Rank: #24787 (+32)
23M → 24M
11:25/mi
11:25 split
40K· 24.85 mi
4:43:05
Rank: #24752 (+35)
24M → 40K
11:44/mi
10:02 split
25.2M
4:47:16
Rank: #24735 (+17)
40K → 25.2M
12:08/mi
4:11 split
Finish· 26.22 mi
4:59:04
Rank: #24772 (-37)
25.2M → Finish
11:35/mi
11:48 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:20:06
Pace10:41 /mi
2nd Half
Distance13.11 mi
Time2:38:58
Pace12:08 /mi
📊Positive Split: 13.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:2231:5510:1631:55
10:16
-
10K
6.21 mi12:25:231:03:5610:1732:01
10:18
+0:02
15K
9.32 mi12:59:391:38:1210:3234:16
11:02
+0:44
20K
12.43 mi13:33:412:12:1410:3834:02
10:57
-0:05
Half
13.11 mi13:41:332:20:0610:417:52
11:32
+0:35
25K
15.53 mi14:10:022:48:3510:5128:29
11:45
+0:13
30K
18.64 mi14:49:353:28:0811:1039:33
12:44
+0:59
20M
20.00 mi15:06:363:45:0911:1517:01
12:31
-0:13
21M
21.00 mi15:19:293:58:0211:2012:53
12:53
+0:22
35K
21.75 mi15:27:584:06:3111:208:29
11:20
-1:33
23M
23.00 mi15:43:054:21:3811:2315:07
12:04
+0:44
24M
24.00 mi15:54:304:33:0311:2311:25
11:25
-0:39
40K
24.85 mi16:04:324:43:0511:2310:02
11:44
+0:19
25.2M
25.20 mi16:08:434:47:1611:244:11
12:08
+0:24
Finish
26.22 mi16:20:314:59:0411:2511:48
11:35
-0:33

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

10:16 /mi

Average Pace

11:25 /mi

Slowest Pace

12:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:12:14

44% of race

Time at Steady Pace

1:18:05

26% of race

Time at Slower Pace

1:28:45

30% of race

Average Pace: 11:24 /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 mi11:53:2231:5510:1631:55
10:16
#24149
10K
6.21 mi12:25:231:03:5610:1732:01
10:18
#24241
15K
9.32 mi12:59:391:38:1210:3234:16
11:02
#24688
20K
12.43 mi13:33:412:12:1410:3834:02
10:57
#24663
Half
13.11 mi13:41:332:20:0610:417:52
11:32
#24728
25K
15.53 mi14:10:022:48:3510:5128:29
11:45
#24781
30K
18.64 mi14:49:353:28:0811:1039:33
12:44
#24935
20M
20.00 mi15:06:363:45:0911:1517:01
12:31
#24924
21M
21.00 mi15:19:293:58:0211:2012:53
12:53
#24866
35K
21.75 mi15:27:584:06:3111:208:29
11:20
#24835
23M
23.00 mi15:43:054:21:3811:2315:07
12:04
#24819
24M
24.00 mi15:54:304:33:0311:2311:25
11:25
#24787
40K
24.85 mi16:04:324:43:0511:2310:02
11:44
#24752
25.2M
25.20 mi16:08:434:47:1611:244:11
12:08
#24735
Finish
26.22 mi16:20:314:59:0411:2511:48
11:35
#24772
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi24149141671416725210(Top 95%)14609(Top 96%)14609(Top 1316%)
10K6.21 mi3.10 mi24241-9214200-3314200-3324306(Top 91%)14221(Top 94%)14221(Top 1281%)
15K9.32 mi3.11 mi24688-44714394-19414394-19425210(Top 95%)14609(Top 96%)14609(Top 1316%)
20K12.43 mi3.11 mi24663+2514375+1914375+1924561(Top 92%)14305(Top 94%)14305(Top 1289%)
Half13.11 mi0.68 mi24728-6514399-2414399-2425506(Top 96%)14689(Top 97%)14689(Top 1323%)
25K15.53 mi2.42 mi24781-5314412-1314412-1324929(Top 94%)14430(Top 95%)14430(Top 1300%)
30K18.64 mi3.11 mi24935-15414460-4814460-4825189(Top 95%)14494(Top 96%)14494(Top 1306%)
20M20.00 mi1.36 mi24924+1114452+814452+824767(Top 93%)14261(Top 94%)14261(Top 1285%)
21M21.00 mi1.00 mi24866+5814415+3714415+3723950(Top 90%)13872(Top 91%)13872(Top 1250%)
35K21.75 mi0.75 mi24835+3114396+1914396+1923874(Top 90%)13789(Top 91%)13789(Top 1242%)
23M23.00 mi1.25 mi24819+1614381+1514381+1524105(Top 91%)13897(Top 92%)13897(Top 1252%)
24M24.00 mi1.00 mi24787+3214356+2514356+2523756(Top 89%)13702(Top 90%)13702(Top 1234%)
40K24.85 mi0.85 mi24752+3514339+1714339+1723549(Top 88%)13560(Top 89%)13560(Top 1222%)
25.2M25.20 mi0.35 mi24735+1714325+1414325+1422728(Top 85%)13199(Top 87%)13199(Top 1189%)
Finish26.22 mi1.02 mi24772-3714336-1114336-1124781(Top 93%)14212(Top 94%)14212(Top 1280%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21stories
+97ft-345ft

Overall

25210

Males

14609

M60-64

14609

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

24306

Males

14221

M60-64

14221

10K→15K

6.2 - 9.3 mi

Top 95%
×3stories
+67ft-78ft

Overall

25210

Males

14609

M60-64

14609

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

24561

Males

14305

M60-64

14305

20K→Half

12.4 - 13.1 mi

Top 96%
×2stories
+19ft-37ft

Overall

25506

Males

14689

M60-64

14689

Half→25K

13.1 - 15.5 mi

Top 94%
×4stories
+66ft-88ft

Overall

24929

Males

14430

M60-64

14430

25K→30K

15.5 - 18.6 mi

Top 95%
×9stories
+181ft-148ft

Overall

25189

Males

14494

M60-64

14494

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

24767

Males

14261

M60-64

14261

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

23950

Males

13872

M60-64

13872

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

23874

Males

13789

M60-64

13789

35K→23M

21.8 - 23.0 mi

Top 91%
×5stories
+23ft-63ft

Overall

24105

Males

13897

M60-64

13897

23M→24M

23.0 - 24.0 mi

Top 89%
×6stories
+12ft-82ft

Overall

23756

Males

13702

M60-64

13702

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23549

Males

13560

M60-64

13560

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22728

Males

13199

M60-64

13199

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2stories
+22ft-21ft

Overall

24781

Males

14212

M60-64

14212

Passing Analysis

Category:
Athletes Passed
711
Passed By
1334
Net Change
-623
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24149
5K → 10K155247-92#24149#24241
10K → 15K34481-447#24241#24688
15K → 20K11186+25#24688#24663
20K → Half368-65#24663#24728
Half → 25K51104-53#24728#24781
25K → 30K43197-154#24781#24935
30K → 20M4231+11#24935#24924
20M → 21M6911+58#24924#24866
21M → 35K4110+31#24866#24835
35K → 23M4428+16#24835#24819
23M → 24M419+32#24819#24787
24M → 40K4510+35#24787#24752
40K → 25.2M225+17#24752#24735
25.2M → Finish1047-37#24735#24772
TOTALS7111334-623
📊

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