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BOSTON MARATHON 2023

Paul Bassler

Bib: 10270•M

NL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 25%
Masters (Masters Men)
#0 / 9891
Top 12%
Division (M45-49)
#0 / 2252
Top 14%
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
7:15/mi
22:31
↑ 97↓ 3451.5%
10K· 6.21 mi
6:51/mi
43:48
↑ 79↓ 1380.4%
15K· 9.32 mi
6:47/mi
1:04:53
↑ 67↓ 78
20K· 12.43 mi
6:42/mi
1:25:41
↑ 106↓ 860.1%
Half· 13.11 mi
6:27/mi
1:30:05
↑ 19↓ 370.5%
25K· 15.53 mi
6:45/mi
1:46:26
↑ 66↓ 880.2%
30K· 18.64 mi
6:57/mi
2:08:01
↑ 181↓ 1480.2%
20M
6:59/mi
2:17:31
↑ 64↓ 500.2%
21M
7:18/mi
2:24:49
↑ 106↓ 241.6%
35K· 21.75 mi
6:40/mi
2:29:48
↑ 17↓ 861.7%
23M
6:50/mi
2:38:21
↑ 23↓ 630.6%
24M
6:35/mi
2:44:56
↓ 821.3%
40K· 24.85 mi
6:39/mi
2:50:37
↓ 200.3%
25.2M
7:00/mi
2:53:02
↑ 13↓ 160.2%
Finish· 26.22 mi
6:31/mi
2:59:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:30:05
Pace6:52 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:35
Pace6:50 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:4922:317:1522:31
7:15
-
10K
6.21 mi11:10:0643:487:0321:17
6:51
-0:24
15K
9.32 mi11:31:111:04:536:5821:05
6:47
-0:04
20K
12.43 mi11:51:591:25:416:5420:48
6:42
-0:05
Half
13.11 mi11:56:231:30:056:524:24
6:27
-0:15
25K
15.53 mi12:12:441:46:266:5116:21
6:45
+0:18
30K
18.64 mi12:34:192:08:016:5221:35
6:57
+0:12
20M
20.00 mi12:43:492:17:316:539:30
6:59
+0:02
21M
21.00 mi12:51:072:24:496:547:18
7:18
+0:19
35K
21.75 mi12:56:062:29:486:534:59
6:40
-0:38
23M
23.00 mi13:04:392:38:216:538:33
6:50
+0:10
24M
24.00 mi13:11:142:44:566:526:35
6:35
-0:15
40K
24.85 mi13:16:552:50:376:525:41
6:39
+0:04
25.2M
25.20 mi13:19:202:53:026:522:25
7:00
+0:21
Finish
26.22 mi13:25:582:59:406:516:38
6:31
-0:29

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

6:27 /mi

Average Pace

6:51 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:51

83% of race

Time at Steady Pace

29:49

17% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:51 /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 mi10:48:4922:317:1522:31
7:15
#7771
10K
6.21 mi11:10:0643:487:0321:17
6:51
#6786
15K
9.32 mi11:31:111:04:536:5821:05
6:47
#6258
20K
12.43 mi11:51:591:25:416:5420:48
6:42
#5671
Half
13.11 mi11:56:231:30:056:524:24
6:27
#5521
25K
15.53 mi12:12:441:46:266:5116:21
6:45
#5205
30K
18.64 mi12:34:192:08:016:5221:35
6:57
#4902
20M
20.00 mi12:43:492:17:316:539:30
6:59
#4794
21M
21.00 mi12:51:072:24:496:547:18
7:18
#4702
35K
21.75 mi12:56:062:29:486:534:59
6:40
#4634
23M
23.00 mi13:04:392:38:216:538:33
6:50
#4486
24M
24.00 mi13:11:142:44:566:526:35
6:35
#4353
40K
24.85 mi13:16:552:50:376:525:41
6:39
#4230
25.2M
25.20 mi13:19:202:53:026:522:25
7:00
#4176
Finish
26.22 mi13:25:582:59:406:516:38
6:31
#4102
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7771682168214966(Top 19%)4610(Top 30%)4610(Top 205%)
10K6.21 mi3.10 mi6786+9856103+7186103+7185734(Top 22%)5246(Top 35%)5246(Top 233%)
15K9.32 mi3.11 mi6258+5285679+4245679+4244966(Top 19%)4610(Top 30%)4610(Top 205%)
20K12.43 mi3.11 mi5671+5875221+4585221+4583549(Top 13%)3358(Top 22%)3358(Top 149%)
Half13.11 mi0.68 mi5521+1505095+1265095+1262529(Top 9%)2428(Top 16%)2428(Top 108%)
25K15.53 mi2.42 mi5205+3164823+2724823+2723703(Top 14%)3488(Top 23%)3488(Top 155%)
30K18.64 mi3.11 mi4902+3034560+2634560+2633987(Top 15%)3726(Top 25%)3726(Top 165%)
20M20.00 mi1.36 mi4794+1084459+1014459+1013975(Top 15%)3691(Top 24%)3691(Top 164%)
21M21.00 mi1.00 mi4702+924381+784381+783611(Top 14%)3351(Top 22%)3351(Top 149%)
35K21.75 mi0.75 mi4634+684316+654316+653363(Top 13%)3133(Top 21%)3133(Top 139%)
23M23.00 mi1.25 mi4486+1484182+1344182+1342837(Top 11%)2653(Top 17%)2653(Top 118%)
24M24.00 mi1.00 mi4353+1334069+1134069+1132502(Top 9%)2338(Top 15%)2338(Top 104%)
40K24.85 mi0.85 mi4230+1233956+1133956+1132129(Top 8%)1993(Top 13%)1993(Top 88%)
25.2M25.20 mi0.35 mi4176+543907+493907+491819(Top 7%)1712(Top 11%)1712(Top 76%)
Finish26.22 mi1.02 mi4102+743837+703837+702549(Top 10%)2343(Top 15%)2343(Top 104%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21story building
+97ft-345ft

Overall

4966

Males

4610

M45-49

4610

5K→10K

3.1 - 6.2 mi

Top 22%
×5story building
+79ft-138ft

Overall

5734

Males

5246

M45-49

5246

10K→15K

6.2 - 9.3 mi

Top 19%
×3story building
+67ft-78ft

Overall

4966

Males

4610

M45-49

4610

15K→20K

9.3 - 12.4 mi

Top 13%
×5story building
+106ft-86ft

Overall

3549

Males

3358

M45-49

3358

20K→Half

12.4 - 13.1 mi

Top 9%
×2story building
+19ft-37ft

Overall

2529

Males

2428

M45-49

2428

Half→25K

13.1 - 15.5 mi

Top 14%
×4story building
+66ft-88ft

Overall

3703

Males

3488

M45-49

3488

25K→30K

15.5 - 18.6 mi

Top 15%
×9story building
+181ft-148ft

Overall

3987

Males

3726

M45-49

3726

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

3975

Males

3691

M45-49

3691

20M→21M

20.0 - 21.0 mi

Top 14%
×8story building
+106ft-24ft

Overall

3611

Males

3351

M45-49

3351

21M→35K

21.0 - 21.8 mi

Top 13%
×7story building
+17ft-86ft

Overall

3363

Males

3133

M45-49

3133

35K→23M

21.8 - 23.0 mi

Top 11%
×5story building
+23ft-63ft

Overall

2837

Males

2653

M45-49

2653

23M→24M

23.0 - 24.0 mi

Top 9%
×6story building
+12ft-82ft

Overall

2502

Males

2338

M45-49

2338

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2129

Males

1993

M45-49

1993

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1819

Males

1712

M45-49

1712

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2story building
+22ft-21ft

Overall

2549

Males

2343

M45-49

2343

Passing Analysis

Category:
Athletes Passed
3766
Passed By
97
Net Change
+3669
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7771
5K → 10K9927+985#7771#6786
10K → 15K5313+528#6786#6258
15K → 20K5881+587#6258#5671
20K → Half1500+150#5671#5521
Half → 25K3204+316#5521#5205
25K → 30K31916+303#5205#4902
30K → 20M12113+108#4902#4794
20M → 21M10917+92#4794#4702
21M → 35K768+68#4702#4634
35K → 23M1579+148#4634#4486
23M → 24M1363+133#4486#4353
24M → 40K1252+123#4353#4230
40K → 25.2M540+54#4230#4176
25.2M → Finish8814+74#4176#4102
TOTALS376697+3669
📊

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