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BOSTON MARATHON 2023

Sean Welch

Bib: 15704•M

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 35%
Gender (Male)
#0 / 15176
Top 50%
Masters (Masters Men)
#0 / 9891
Top 38%
Division (M60-64)
#0 / 1110
Top 7%
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
7:50/mi
24:21
↑ 97↓ 3451.5%
10K· 6.21 mi
7:25/mi
47:23
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:10:35
↑ 67↓ 78
20K· 12.43 mi
7:31/mi
1:33:57
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:39:03
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:57:31
↑ 66↓ 880.2%
30K· 18.64 mi
7:39/mi
2:21:18
↑ 181↓ 1480.2%
20M
7:45/mi
2:31:50
↑ 64↓ 500.2%
21M
8:04/mi
2:39:54
↑ 106↓ 241.6%
35K· 21.75 mi
7:45/mi
2:45:42
↑ 17↓ 861.7%
23M
7:53/mi
2:55:34
↑ 23↓ 630.6%
24M
7:43/mi
3:03:17
↓ 821.3%
40K· 24.85 mi
7:48/mi
3:09:57
↓ 200.3%
25.2M
8:10/mi
3:12:46
↑ 13↓ 160.2%
Finish· 26.22 mi
7:37/mi
3:20:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:03
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time1:41:29
Pace7:44 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:3824:217:5024:21
7:50
-
10K
6.21 mi11:17:4047:237:3823:02
7:25
-0:25
15K
9.32 mi11:40:521:10:357:3423:12
7:28
+0:03
20K
12.43 mi12:04:141:33:577:3423:22
7:31
+0:03
Half
13.11 mi12:09:201:39:037:335:06
7:29
-0:02
25K
15.53 mi12:27:481:57:317:3418:28
7:37
+0:08
30K
18.64 mi12:51:352:21:187:3523:47
7:39
+0:02
20M
20.00 mi13:02:072:31:507:3510:32
7:45
+0:06
21M
21.00 mi13:10:112:39:547:378:04
8:04
+0:19
35K
21.75 mi13:15:592:45:427:375:48
7:45
-0:19
23M
23.00 mi13:25:512:55:347:389:52
7:53
+0:08
24M
24.00 mi13:33:343:03:177:387:43
7:43
-0:10
40K
24.85 mi13:40:143:09:577:396:40
7:48
+0:05
25.2M
25.20 mi13:43:033:12:467:392:49
8:10
+0:22
Finish
26.22 mi13:50:493:20:327:397:46
7:37
-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

7:25 /mi

Average Pace

7:39 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:43

99% of race

Time at Steady Pace

2:49

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:39 /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 mi10:54:3824:217:5024:21
7:50
#12698
10K
6.21 mi11:17:4047:237:3823:02
7:25
#11139
15K
9.32 mi11:40:521:10:357:3423:12
7:28
#10686
20K
12.43 mi12:04:141:33:577:3423:22
7:31
#10346
Half
13.11 mi12:09:201:39:037:335:06
7:29
#10321
25K
15.53 mi12:27:481:57:317:3418:28
7:37
#10181
30K
18.64 mi12:51:352:21:187:3523:47
7:39
#9819
20M
20.00 mi13:02:072:31:507:3510:32
7:45
#9677
21M
21.00 mi13:10:112:39:547:378:04
8:04
#9543
35K
21.75 mi13:15:592:45:427:375:48
7:45
#9557
23M
23.00 mi13:25:512:55:347:389:52
7:53
#9478
24M
24.00 mi13:33:343:03:177:387:43
7:43
#9457
40K
24.85 mi13:40:143:09:577:396:40
7:48
#9387
25.2M
25.20 mi13:43:033:12:467:392:49
8:10
#9343
Finish
26.22 mi13:50:493:20:327:397:46
7:37
#9337
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi12698939793979902(Top 37%)8092(Top 53%)8092(Top 729%)
10K6.21 mi3.10 mi11139+15598723+6748723+6749734(Top 37%)8016(Top 53%)8016(Top 722%)
15K9.32 mi3.11 mi10686+4538507+2168507+2169902(Top 37%)8092(Top 53%)8092(Top 729%)
20K12.43 mi3.11 mi10346+3408337+1708337+1709462(Top 36%)7775(Top 51%)7775(Top 700%)
Half13.11 mi0.68 mi10321+258319+188319+189959(Top 37%)8069(Top 53%)8069(Top 727%)
25K15.53 mi2.42 mi10181+1408224+958224+959655(Top 36%)7790(Top 51%)7790(Top 702%)
30K18.64 mi3.11 mi9819+3627998+2267998+2268332(Top 31%)6884(Top 45%)6884(Top 620%)
20M20.00 mi1.36 mi9677+1427883+1157883+1158509(Top 32%)6901(Top 45%)6901(Top 622%)
21M21.00 mi1.00 mi9543+1347783+1007783+1007785(Top 29%)6368(Top 42%)6368(Top 574%)
35K21.75 mi0.75 mi9557-147778+57778+510259(Top 39%)7752(Top 51%)7752(Top 698%)
23M23.00 mi1.25 mi9478+797710+687710+688933(Top 34%)6933(Top 46%)6933(Top 625%)
24M24.00 mi1.00 mi9457+217667+437667+439175(Top 34%)6978(Top 46%)6978(Top 629%)
40K24.85 mi0.85 mi9387+707592+757592+758650(Top 32%)6634(Top 44%)6634(Top 598%)
25.2M25.20 mi0.35 mi9343+447554+387554+387488(Top 28%)5888(Top 39%)5888(Top 530%)
Finish26.22 mi1.02 mi9337+67531+237531+239391(Top 35%)6960(Top 46%)6960(Top 627%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9902

Males

8092

M60-64

8092

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

9734

Males

8016

M60-64

8016

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9902

Males

8092

M60-64

8092

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

9462

Males

7775

M60-64

7775

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

9959

Males

8069

M60-64

8069

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9655

Males

7790

M60-64

7790

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8332

Males

6884

M60-64

6884

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

8509

Males

6901

M60-64

6901

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7785

Males

6368

M60-64

6368

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10259

Males

7752

M60-64

7752

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

8933

Males

6933

M60-64

6933

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9175

Males

6978

M60-64

6978

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8650

Males

6634

M60-64

6634

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7488

Males

5888

M60-64

5888

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

9391

Males

6960

M60-64

6960

Passing Analysis

Category:
Athletes Passed
3831*
Passed By
470
Net Change
+3361
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12698
5K → 10K158425+1559#12698#11139
10K → 15K48936+453#11139#10686
15K → 20K364*24+340#10686#10346
20K → Half3712+25#10346#10321
Half → 25K20868+140#10321#10181
25K → 30K388*26+362#10181#9819
30K → 20M16321+142#9819#9677
20M → 21M14915+134#9677#9543
21M → 35K4256-14#9543#9557
35K → 23M12344+79#9557#9478
23M → 24M7857+21#9478#9457
24M → 40K99*29+70#9457#9387
40K → 25.2M5410+44#9387#9343
25.2M → Finish5347+6#9343#9337
TOTALS3831*470+3361

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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