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BOSTON MARATHON 2023

Boris Pirwitz

Bib: 19754•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 45%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 49%
Division (M60-64)
#0 / 1110
Top 15%
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
7:57/mi
24:41
↑ 97↓ 3451.5%
10K· 6.21 mi
7:47/mi
48:53
↑ 79↓ 1380.4%
15K· 9.32 mi
7:51/mi
1:13:16
↑ 67↓ 78
20K· 12.43 mi
7:58/mi
1:38:00
↑ 106↓ 860.1%
Half· 13.11 mi
7:42/mi
1:43:15
↑ 19↓ 370.5%
25K· 15.53 mi
7:55/mi
2:02:26
↑ 66↓ 880.2%
30K· 18.64 mi
8:02/mi
2:27:23
↑ 181↓ 1480.2%
20M
8:02/mi
2:38:18
↑ 64↓ 500.2%
21M
8:35/mi
2:46:53
↑ 106↓ 241.6%
35K· 21.75 mi
7:48/mi
2:52:43
↑ 17↓ 861.7%
23M
8:09/mi
3:02:55
↑ 23↓ 630.6%
24M
7:55/mi
3:10:50
↓ 821.3%
40K· 24.85 mi
8:05/mi
3:17:45
↓ 200.3%
25.2M
8:33/mi
3:20:42
↑ 13↓ 160.2%
Finish· 26.22 mi
7:51/mi
3:28:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:15
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:45:27
Pace8:03 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3124:417:5724:41
7:57
-
10K
6.21 mi11:40:4348:537:5224:12
7:47
-0:10
15K
9.32 mi12:05:061:13:167:5224:23
7:51
+0:04
20K
12.43 mi12:29:501:38:007:5324:44
7:58
+0:07
Half
13.11 mi12:35:051:43:157:535:15
7:42
-0:16
25K
15.53 mi12:54:162:02:267:5319:11
7:55
+0:13
30K
18.64 mi13:19:132:27:237:5424:57
8:02
+0:07
20M
20.00 mi13:30:082:38:187:5510:55
8:02
0:00
21M
21.00 mi13:38:432:46:537:578:35
8:35
+0:33
35K
21.75 mi13:44:332:52:437:575:50
7:48
-0:47
23M
23.00 mi13:54:453:02:557:5710:12
8:09
+0:21
24M
24.00 mi14:02:403:10:507:577:55
7:55
-0:14
40K
24.85 mi14:09:353:17:457:576:55
8:05
+0:10
25.2M
25.20 mi14:12:323:20:427:582:57
8:33
+0:28
Finish
26.22 mi14:20:323:28:427:588:00
7:51
-0:42

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

7:42 /mi

Average Pace

7:58 /mi

Slowest Pace

8:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:10

94% of race

Time at Steady Pace

11:32

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:58 /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 mi11:16:3124:417:5724:41
7:57
#13607
10K
6.21 mi11:40:4348:537:5224:12
7:47
#13316
15K
9.32 mi12:05:061:13:167:5224:23
7:51
#13220
20K
12.43 mi12:29:501:38:007:5324:44
7:58
#13180
Half
13.11 mi12:35:051:43:157:535:15
7:42
#13094
25K
15.53 mi12:54:162:02:267:5319:11
7:55
#12879
30K
18.64 mi13:19:132:27:237:5424:57
8:02
#12520
20M
20.00 mi13:30:082:38:187:5510:55
8:02
#12339
21M
21.00 mi13:38:432:46:537:578:35
8:35
#12239
35K
21.75 mi13:44:332:52:437:575:50
7:48
#12163
23M
23.00 mi13:54:453:02:557:5710:12
8:09
#12066
24M
24.00 mi14:02:403:10:507:577:55
7:55
#11998
40K
24.85 mi14:09:353:17:457:576:55
8:05
#11939
25.2M
25.20 mi14:12:323:20:427:582:57
8:33
#11889
Finish
26.22 mi14:20:323:28:427:588:00
7:51
#11860
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi136079802980213098(Top 49%)9544(Top 63%)9544(Top 860%)
10K6.21 mi3.10 mi13316+2919661+1419661+14113013(Top 49%)9562(Top 63%)9562(Top 861%)
15K9.32 mi3.11 mi13220+969614+479614+4713098(Top 49%)9544(Top 63%)9544(Top 860%)
20K12.43 mi3.11 mi13180+409563+519563+5113096(Top 49%)9480(Top 62%)9480(Top 854%)
Half13.11 mi0.68 mi13094+869539+249539+2411801(Top 44%)8986(Top 59%)8986(Top 810%)
25K15.53 mi2.42 mi12879+2159418+1219418+12111993(Top 45%)8903(Top 59%)8903(Top 802%)
30K18.64 mi3.11 mi12520+3599235+1839235+18311141(Top 42%)8419(Top 55%)8419(Top 758%)
20M20.00 mi1.36 mi12339+1819141+949141+9410511(Top 39%)8012(Top 53%)8012(Top 722%)
21M21.00 mi1.00 mi12239+1009076+659076+6510959(Top 41%)8104(Top 53%)8104(Top 730%)
35K21.75 mi0.75 mi12163+769023+539023+5310619(Top 40%)7934(Top 52%)7934(Top 715%)
23M23.00 mi1.25 mi12066+978955+688955+6810790(Top 41%)7867(Top 52%)7867(Top 709%)
24M24.00 mi1.00 mi11998+688905+508905+5010638(Top 40%)7734(Top 51%)7734(Top 697%)
40K24.85 mi0.85 mi11939+598857+488857+4810628(Top 40%)7669(Top 51%)7669(Top 691%)
25.2M25.20 mi0.35 mi11889+508831+268831+269846(Top 37%)7232(Top 48%)7232(Top 652%)
Finish26.22 mi1.02 mi11860+298800+318800+3111029(Top 41%)7805(Top 51%)7805(Top 703%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

13098

Males

9544

M60-64

9544

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13013

Males

9562

M60-64

9562

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

13098

Males

9544

M60-64

9544

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13096

Males

9480

M60-64

9480

20K→Half

12.4 - 13.1 mi

Top 44%
×2story building
+19ft-37ft

Overall

11801

Males

8986

M60-64

8986

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

11993

Males

8903

M60-64

8903

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

11141

Males

8419

M60-64

8419

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10511

Males

8012

M60-64

8012

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

10959

Males

8104

M60-64

8104

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

10619

Males

7934

M60-64

7934

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

10790

Males

7867

M60-64

7867

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

10638

Males

7734

M60-64

7734

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10628

Males

7669

M60-64

7669

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9846

Males

7232

M60-64

7232

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

11029

Males

7805

M60-64

7805

Passing Analysis

Category:
Athletes Passed
2594
Passed By
847
Net Change
+1747
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13607
5K → 10K466175+291#13607#13316
10K → 15K253157+96#13316#13220
15K → 20K202162+40#13220#13180
20K → Half915+86#13180#13094
Half → 25K26348+215#13094#12879
25K → 30K40344+359#12879#12520
30K → 20M20120+181#12520#12339
20M → 21M14242+100#12339#12239
21M → 35K9014+76#12239#12163
35K → 23M13639+97#12163#12066
23M → 24M10537+68#12066#11998
24M → 40K9738+59#11998#11939
40K → 25.2M6010+50#11939#11889
25.2M → Finish8556+29#11889#11860
TOTALS2594847+1747
📊

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