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BOSTON MARATHON 2023

Jason Timmerman

Bib: 6478•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 17%
Gender (Male)
#0 / 15176
Top 28%
Masters (Masters Men)
#0 / 9891
Top 14%
Division (M45-49)
#0 / 2252
Top 17%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:19
Rank: #5222
Start → 5K
21:19 | 6:52/mi
10K· 6.21 mi
42:34
Rank: #5425 (-203)
5K → 10K
21:15 | 6:50/mi
15K· 9.32 mi
1:03:41
Rank: #5290 (+135)
10K → 15K
21:07 | 6:48/mi
20K· 12.43 mi
1:24:56
Rank: #5178 (+112)
15K → 20K
21:15 | 6:50/mi
Half· 13.11 mi
1:29:35
Rank: #5189 (-11)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:46:06
Rank: #4994 (+195)
Half → 25K
16:31 | 6:49/mi
30K· 18.64 mi
2:07:43
Rank: #4767 (+227)
25K → 30K
21:37 | 6:57/mi
20M
2:17:12
Rank: #4675 (+92)
30K → 20M
9:29 | 6:59/mi
21M
2:24:19
Rank: #4521 (+154)
20M → 21M
7:07 | 7:07/mi
35K· 21.75 mi
2:29:29
Rank: #4526 (-5)
21M → 35K
5:10 | 6:54/mi
23M
2:38:12
Rank: #4434 (+92)
35K → 23M
8:43 | 6:58/mi
24M
2:45:09
Rank: #4431 (+3)
23M → 24M
6:57 | 6:57/mi
40K· 24.85 mi
2:51:27
Rank: #4465 (-34)
24M → 40K
6:18 | 7:22/mi
25.2M
2:54:12
Rank: #4487 (-22)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
3:01:44
Rank: #4562 (-75)
25.2M → Finish
7:32 | 7:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:35
Pace6:50 /mi
2nd Half
Distance13.11 mi
Time1:32:09
Pace7:02 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:4121:196:5221:19
6:52
-
10K
6.21 mi10:45:5642:346:5121:15
6:50
-0:02
15K
9.32 mi11:07:031:03:416:5021:07
6:48
-0:02
20K
12.43 mi11:28:181:24:566:5021:15
6:50
+0:02
Half
13.11 mi11:32:571:29:356:504:39
6:49
-0:01
25K
15.53 mi11:49:281:46:066:5016:31
6:49
0:00
30K
18.64 mi12:11:052:07:436:5121:37
6:57
+0:08
20M
20.00 mi12:20:342:17:126:529:29
6:59
+0:02
21M
21.00 mi12:27:412:24:196:527:07
7:07
+0:08
35K
21.75 mi12:32:512:29:296:525:10
6:54
-0:13
23M
23.00 mi12:41:342:38:126:538:43
6:58
+0:04
24M
24.00 mi12:48:312:45:096:536:57
6:57
-0:01
40K
24.85 mi12:54:492:51:276:546:18
7:22
+0:25
25.2M
25.20 mi12:57:342:54:126:552:45
7:58
+0:36
Finish
26.22 mi13:05:063:01:446:567:32
7:24
-0:34

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

6:48 /mi

Average Pace

6:56 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:59

98% of race

Time at Steady Pace

2:45

2% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:56 /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 mi10:24:4121:196:5221:19
6:52
#5222
10K
6.21 mi10:45:5642:346:5121:15
6:50
#5425
15K
9.32 mi11:07:031:03:416:5021:07
6:48
#5290
20K
12.43 mi11:28:181:24:566:5021:15
6:50
#5178
Half
13.11 mi11:32:571:29:356:504:39
6:49
#5189
25K
15.53 mi11:49:281:46:066:5016:31
6:49
#4994
30K
18.64 mi12:11:052:07:436:5121:37
6:57
#4767
20M
20.00 mi12:20:342:17:126:529:29
6:59
#4675
21M
21.00 mi12:27:412:24:196:527:07
7:07
#4521
35K
21.75 mi12:32:512:29:296:525:10
6:54
#4526
23M
23.00 mi12:41:342:38:126:538:43
6:58
#4434
24M
24.00 mi12:48:312:45:096:536:57
6:57
#4431
40K
24.85 mi12:54:492:51:276:546:18
7:22
#4465
25.2M
25.20 mi12:57:342:54:126:552:45
7:58
#4487
Finish
26.22 mi13:05:063:01:446:567:32
7:24
#4562
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi5222483648365074(Top 19%)4701(Top 31%)4701(Top 209%)
10K6.21 mi3.10 mi5425-2035010-1745010-1745652(Top 21%)5186(Top 34%)5186(Top 230%)
15K9.32 mi3.11 mi5290+1354899+1114899+1115074(Top 19%)4701(Top 31%)4701(Top 209%)
20K12.43 mi3.11 mi5178+1124800+994800+994809(Top 18%)4467(Top 29%)4467(Top 198%)
Half13.11 mi0.68 mi5189-114811-114811-115335(Top 20%)4918(Top 32%)4918(Top 218%)
25K15.53 mi2.42 mi4994+1954639+1724639+1724262(Top 16%)3987(Top 26%)3987(Top 177%)
30K18.64 mi3.11 mi4767+2274439+2004439+2004073(Top 15%)3803(Top 25%)3803(Top 169%)
20M20.00 mi1.36 mi4675+924360+794360+793919(Top 15%)3647(Top 24%)3647(Top 162%)
21M21.00 mi1.00 mi4521+1544219+1414219+1412714(Top 10%)2550(Top 17%)2550(Top 113%)
35K21.75 mi0.75 mi4526-54221-24221-24792(Top 18%)4328(Top 29%)4328(Top 192%)
23M23.00 mi1.25 mi4434+924139+824139+823594(Top 14%)3333(Top 22%)3333(Top 148%)
24M24.00 mi1.00 mi4431+34135+44135+44414(Top 17%)3989(Top 26%)3989(Top 177%)
40K24.85 mi0.85 mi4465-344163-284163-285839(Top 22%)4905(Top 32%)4905(Top 218%)
25.2M25.20 mi0.35 mi4487-224180-174180-176246(Top 23%)5082(Top 33%)5082(Top 226%)
Finish26.22 mi1.02 mi4562-754236-564236-567690(Top 29%)5976(Top 39%)5976(Top 265%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5074

Males

4701

M45-49

4701

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5652

Males

5186

M45-49

5186

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5074

Males

4701

M45-49

4701

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4809

Males

4467

M45-49

4467

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5335

Males

4918

M45-49

4918

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4262

Males

3987

M45-49

3987

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4073

Males

3803

M45-49

3803

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

3919

Males

3647

M45-49

3647

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2714

Males

2550

M45-49

2550

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4792

Males

4328

M45-49

4328

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3594

Males

3333

M45-49

3333

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4414

Males

3989

M45-49

3989

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5839

Males

4905

M45-49

4905

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6246

Males

5082

M45-49

5082

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

7690

Males

5976

M45-49

5976

Passing Analysis

Category:
Athletes Passed
1520
Passed By
860
Net Change
+660
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5222
5K → 10K114317-203#5222#5425
10K → 15K19459+135#5425#5290
15K → 20K17159+112#5290#5178
20K → Half1627-11#5178#5189
Half → 25K21217+195#5189#4994
25K → 30K26235+227#4994#4767
30K → 20M11119+92#4767#4675
20M → 21M1606+154#4675#4521
21M → 35K4045-5#4521#4526
35K → 23M12735+92#4526#4434
23M → 24M4441+3#4434#4431
24M → 40K3165-34#4431#4465
40K → 25.2M1234-22#4465#4487
25.2M → Finish26101-75#4487#4562
TOTALS1520860+660
📊

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