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BOSTON MARATHON 2023

Daniel Klausner

Bib: 16633•M

AZ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Top 45%
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
8:31/mi
26:28
↑ 97↓ 3451.5%
10K· 6.21 mi
8:00/mi
51:20
↑ 79↓ 1380.4%
15K· 9.32 mi
8:01/mi
1:16:13
↑ 67↓ 78
20K· 12.43 mi
8:10/mi
1:41:34
↑ 106↓ 860.1%
Half· 13.11 mi
8:04/mi
1:47:04
↑ 19↓ 370.5%
25K· 15.53 mi
8:04/mi
2:06:37
↑ 66↓ 880.2%
30K· 18.64 mi
8:16/mi
2:32:18
↑ 181↓ 1480.2%
20M
8:35/mi
2:43:57
↑ 64↓ 500.2%
21M
8:35/mi
2:52:32
↑ 106↓ 241.6%
35K· 21.75 mi
8:08/mi
2:58:37
↑ 17↓ 861.7%
23M
8:14/mi
3:08:56
↑ 23↓ 630.6%
24M
7:56/mi
3:16:52
↓ 821.3%
40K· 24.85 mi
8:04/mi
3:23:46
↓ 200.3%
25.2M
8:16/mi
3:26:37
↑ 13↓ 160.2%
Finish· 26.22 mi
7:32/mi
3:34:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:47:04
Pace8:10 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:47:14
Pace8:11 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3526:288:3126:28
8:31
-
10K
6.21 mi11:41:2751:208:1624:52
8:00
-0:31
15K
9.32 mi12:06:201:16:138:1124:53
8:01
+0:01
20K
12.43 mi12:31:411:41:348:1025:21
8:10
+0:09
Half
13.11 mi12:37:111:47:048:105:30
8:04
-0:06
25K
15.53 mi12:56:442:06:378:0919:33
8:04
0:00
30K
18.64 mi13:22:252:32:188:1025:41
8:16
+0:12
20M
20.00 mi13:34:042:43:578:1211:39
8:35
+0:19
21M
21.00 mi13:42:392:52:328:138:35
8:35
0:00
35K
21.75 mi13:48:442:58:378:136:05
8:08
-0:27
23M
23.00 mi13:59:033:08:568:1310:19
8:14
+0:06
24M
24.00 mi14:06:593:16:528:127:56
7:56
-0:18
40K
24.85 mi14:13:533:23:468:126:54
8:04
+0:08
25.2M
25.20 mi14:16:443:26:378:122:51
8:16
+0:12
Finish
26.22 mi14:24:253:34:188:117:41
7:32
-0:44

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

7:32 /mi

Average Pace

8:11 /mi

Slowest Pace

8:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:36

78% of race

Time at Steady Pace

46:42

22% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:10 /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 mi11:16:3526:288:3126:28
8:31
#17668
10K
6.21 mi11:41:2751:208:1624:52
8:00
#16239
15K
9.32 mi12:06:201:16:138:1124:53
8:01
#15646
20K
12.43 mi12:31:411:41:348:1025:21
8:10
#15389
Half
13.11 mi12:37:111:47:048:105:30
8:04
#15351
25K
15.53 mi12:56:442:06:378:0919:33
8:04
#14992
30K
18.64 mi13:22:252:32:188:1025:41
8:16
#14589
20M
20.00 mi13:34:042:43:578:1211:39
8:35
#14540
21M
21.00 mi13:42:392:52:328:138:35
8:35
#14324
35K
21.75 mi13:48:442:58:378:136:05
8:08
#14258
23M
23.00 mi13:59:033:08:568:1310:19
8:14
#14053
24M
24.00 mi14:06:593:16:528:127:56
7:56
#13901
40K
24.85 mi14:13:533:23:468:126:54
8:04
#13753
25.2M
25.20 mi14:16:443:26:378:122:51
8:16
#13639
Finish
26.22 mi14:24:253:34:188:117:41
7:32
#13430
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi17668112901129014444(Top 54%)10080(Top 66%)10080(Top 709%)
10K6.21 mi3.10 mi16239+142910799+49110799+49114822(Top 56%)10242(Top 67%)10242(Top 720%)
15K9.32 mi3.11 mi15646+59310561+23810561+23814444(Top 54%)10080(Top 66%)10080(Top 709%)
20K12.43 mi3.11 mi15389+25710447+11410447+11414651(Top 55%)10135(Top 67%)10135(Top 713%)
Half13.11 mi0.68 mi15351+3810421+2610421+2614781(Top 56%)10198(Top 67%)10198(Top 717%)
25K15.53 mi2.42 mi14992+35910266+15510266+15513239(Top 50%)9456(Top 62%)9456(Top 665%)
30K18.64 mi3.11 mi14589+40310079+18710079+18712795(Top 48%)9149(Top 60%)9149(Top 643%)
20M20.00 mi1.36 mi14540+4910029+5010029+5014130(Top 53%)9613(Top 63%)9613(Top 676%)
21M21.00 mi1.00 mi14324+2169906+1239906+12310926(Top 41%)8072(Top 53%)8072(Top 568%)
35K21.75 mi0.75 mi14258+669873+339873+3312974(Top 49%)8972(Top 59%)8972(Top 631%)
23M23.00 mi1.25 mi14053+2059775+989775+9811464(Top 43%)8211(Top 54%)8211(Top 577%)
24M24.00 mi1.00 mi13901+1529687+889687+8810771(Top 40%)7794(Top 51%)7794(Top 548%)
40K24.85 mi0.85 mi13753+1489621+669621+6610503(Top 39%)7615(Top 50%)7615(Top 536%)
25.2M25.20 mi0.35 mi13639+1149570+519570+518097(Top 30%)6257(Top 41%)6257(Top 440%)
Finish26.22 mi1.02 mi13430+2099459+1119459+1118845(Top 33%)6673(Top 44%)6673(Top 469%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14444

Males

10080

M55-59

10080

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

14822

Males

10242

M55-59

10242

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14444

Males

10080

M55-59

10080

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14651

Males

10135

M55-59

10135

20K→Half

12.4 - 13.1 mi

Top 56%
×2story building
+19ft-37ft

Overall

14781

Males

10198

M55-59

10198

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

13239

Males

9456

M55-59

9456

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

12795

Males

9149

M55-59

9149

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

14130

Males

9613

M55-59

9613

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

10926

Males

8072

M55-59

8072

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

12974

Males

8972

M55-59

8972

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

11464

Males

8211

M55-59

8211

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

10771

Males

7794

M55-59

7794

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10503

Males

7615

M55-59

7615

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8097

Males

6257

M55-59

6257

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

8845

Males

6673

M55-59

6673

Passing Analysis

Category:
Athletes Passed
4548
Passed By
310
Net Change
+4238
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17668
5K → 10K147142+1429#17668#16239
10K → 15K62431+593#16239#15646
15K → 20K31760+257#15646#15389
20K → Half5719+38#15389#15351
Half → 25K37011+359#15351#14992
25K → 30K42623+403#14992#14589
30K → 20M11566+49#14589#14540
20M → 21M2204+216#14540#14324
21M → 35K8216+66#14324#14258
35K → 23M21813+205#14258#14053
23M → 24M1575+152#14053#13901
24M → 40K15810+148#13901#13753
40K → 25.2M1195+114#13753#13639
25.2M → Finish2145+209#13639#13430
TOTALS4548310+4238
📊

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