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BOSTON MARATHON 2023

Stuart Palczak

Bib: 15642•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 48%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Top 41%
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
7:49/mi
24:16
↑ 97↓ 3451.5%
10K· 6.21 mi
7:38/mi
47:58
↑ 79↓ 1380.4%
15K· 9.32 mi
7:37/mi
1:11:37
↑ 67↓ 78
20K· 12.43 mi
7:53/mi
1:36:08
↑ 106↓ 860.1%
Half· 13.11 mi
7:39/mi
1:41:21
↑ 19↓ 370.5%
25K· 15.53 mi
7:49/mi
2:00:19
↑ 66↓ 880.2%
30K· 18.64 mi
8:04/mi
2:25:24
↑ 181↓ 1480.2%
20M
8:06/mi
2:36:24
↑ 64↓ 500.2%
21M
8:20/mi
2:44:44
↑ 106↓ 241.6%
35K· 21.75 mi
8:05/mi
2:50:47
↑ 17↓ 861.7%
23M
8:31/mi
3:01:27
↑ 23↓ 630.6%
24M
9:16/mi
3:10:43
↓ 821.3%
40K· 24.85 mi
10:00/mi
3:19:16
↓ 200.3%
25.2M
10:29/mi
3:22:53
↑ 13↓ 160.2%
Finish· 26.22 mi
9:14/mi
3:32:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:21
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:50:57
Pace8:28 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:0824:167:4924:16
7:49
-
10K
6.21 mi11:17:5047:587:4323:42
7:38
-0:11
15K
9.32 mi11:41:291:11:377:4123:39
7:37
-0:01
20K
12.43 mi12:06:001:36:087:4424:31
7:53
+0:16
Half
13.11 mi12:11:131:41:217:445:13
7:39
-0:14
25K
15.53 mi12:30:112:00:197:4518:58
7:49
+0:10
30K
18.64 mi12:55:162:25:247:4825:05
8:04
+0:15
20M
20.00 mi13:06:162:36:247:4911:00
8:06
+0:02
21M
21.00 mi13:14:362:44:447:518:20
8:20
+0:14
35K
21.75 mi13:20:392:50:477:516:03
8:05
-0:15
23M
23.00 mi13:31:193:01:277:5310:40
8:31
+0:26
24M
24.00 mi13:40:353:10:437:579:16
9:16
+0:45
40K
24.85 mi13:49:083:19:168:018:33
10:00
+0:44
25.2M
25.20 mi13:52:453:22:538:033:37
10:29
+0:29
Finish
26.22 mi14:02:103:32:188:069:25
9:14
-1:15

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

7:37 /mi

Average Pace

8:06 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

47:21

22% of race

Time at Steady Pace

2:14:06

63% of race

Time at Slower Pace

30:51

15% of race

Average Pace: 8:06 /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 mi10:54:0824:167:4924:16
7:49
#12430
10K
6.21 mi11:17:5047:587:4323:42
7:38
#11998
15K
9.32 mi11:41:291:11:377:4123:39
7:37
#11639
20K
12.43 mi12:06:001:36:087:4424:31
7:53
#11838
Half
13.11 mi12:11:131:41:217:445:13
7:39
#11814
25K
15.53 mi12:30:112:00:197:4518:58
7:49
#11678
30K
18.64 mi12:55:162:25:247:4825:05
8:04
#11606
20M
20.00 mi13:06:162:36:247:4911:00
8:06
#11536
21M
21.00 mi13:14:362:44:447:518:20
8:20
#11367
35K
21.75 mi13:20:392:50:477:516:03
8:05
#11414
23M
23.00 mi13:31:193:01:277:5310:40
8:31
#11546
24M
24.00 mi13:40:353:10:437:579:16
9:16
#11960
40K
24.85 mi13:49:083:19:168:018:33
10:00
#12422
25.2M
25.20 mi13:52:453:22:538:033:37
10:29
#12574
Finish
26.22 mi14:02:103:32:188:069:25
9:14
#12878
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi124309294929411122(Top 42%)8691(Top 57%)8691(Top 611%)
10K6.21 mi3.10 mi11998+4329114+1809114+18011575(Top 43%)8921(Top 59%)8921(Top 627%)
15K9.32 mi3.11 mi11639+3598937+1778937+17711122(Top 42%)8691(Top 57%)8691(Top 611%)
20K12.43 mi3.11 mi11838-1999002-659002-6512533(Top 47%)9241(Top 61%)9241(Top 650%)
Half13.11 mi0.68 mi11814+248994+88994+811380(Top 43%)8813(Top 58%)8813(Top 620%)
25K15.53 mi2.42 mi11678+1368916+788916+7811277(Top 42%)8621(Top 57%)8621(Top 606%)
30K18.64 mi3.11 mi11606+728837+798837+7911459(Top 43%)8569(Top 56%)8569(Top 603%)
20M20.00 mi1.36 mi11536+708784+538784+5310977(Top 41%)8249(Top 54%)8249(Top 580%)
21M21.00 mi1.00 mi11367+1698697+878697+879427(Top 35%)7314(Top 48%)7314(Top 514%)
35K21.75 mi0.75 mi11414-478702-58702-512696(Top 48%)8860(Top 58%)8860(Top 623%)
23M23.00 mi1.25 mi11546-1328738-368738-3613336(Top 50%)9059(Top 60%)9059(Top 637%)
24M24.00 mi1.00 mi11960-4148887-1498887-14918305(Top 69%)11218(Top 74%)11218(Top 789%)
40K24.85 mi0.85 mi12422-4629081-1949081-19419933(Top 75%)11880(Top 78%)11880(Top 835%)
25.2M25.20 mi0.35 mi12574-1529137-569137-5618997(Top 71%)11453(Top 75%)11453(Top 805%)
Finish26.22 mi1.02 mi12878-3049233-969233-9619082(Top 72%)11570(Top 76%)11570(Top 814%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11122

Males

8691

M55-59

8691

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

11575

Males

8921

M55-59

8921

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11122

Males

8691

M55-59

8691

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

12533

Males

9241

M55-59

9241

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

11380

Males

8813

M55-59

8813

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11277

Males

8621

M55-59

8621

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

11459

Males

8569

M55-59

8569

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

10977

Males

8249

M55-59

8249

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9427

Males

7314

M55-59

7314

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

12696

Males

8860

M55-59

8860

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

13336

Males

9059

M55-59

9059

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

18305

Males

11218

M55-59

11218

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19933

Males

11880

M55-59

11880

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

18997

Males

11453

M55-59

11453

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

19082

Males

11570

M55-59

11570

Passing Analysis

Category:
Athletes Passed
1995
Passed By
2443
Net Change
-448
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12430
5K → 10K586154+432#12430#11998
10K → 15K40849+359#11998#11639
15K → 20K97296-199#11639#11838
20K → Half4521+24#11838#11814
Half → 25K20771+136#11814#11678
25K → 30K203131+72#11678#11606
30K → 20M13262+70#11606#11536
20M → 21M18920+169#11536#11367
21M → 35K3885-47#11367#11414
35K → 23M57189-132#11414#11546
23M → 24M7421-414#11546#11960
24M → 40K7469-462#11960#12422
40K → 25.2M8160-152#12422#12574
25.2M → Finish11315-304#12574#12878
TOTALS19952443-448
📊

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