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BOSTON MARATHON 2023

Christopher Klein

Bib: 15121•M

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Top 31%
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
7:55/mi
24:37
↑ 97↓ 3451.5%
10K· 6.21 mi
7:59/mi
49:24
↑ 79↓ 1380.4%
15K· 9.32 mi
7:48/mi
1:13:39
↑ 67↓ 78
20K· 12.43 mi
8:00/mi
1:38:30
↑ 106↓ 860.1%
Half· 13.11 mi
7:59/mi
1:43:57
↑ 19↓ 370.5%
25K· 15.53 mi
8:08/mi
2:03:39
↑ 66↓ 880.2%
30K· 18.64 mi
8:47/mi
2:30:57
↑ 181↓ 1480.2%
20M
9:13/mi
2:43:29
↑ 64↓ 500.2%
21M
10:40/mi
2:54:09
↑ 106↓ 241.6%
35K· 21.75 mi
8:39/mi
3:00:37
↑ 17↓ 861.7%
23M
9:12/mi
3:12:08
↑ 23↓ 630.6%
24M
8:52/mi
3:21:00
↓ 821.3%
40K· 24.85 mi
8:57/mi
3:28:39
↓ 200.3%
25.2M
10:35/mi
3:32:18
↑ 13↓ 160.2%
Finish· 26.22 mi
8:33/mi
3:41:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:57
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:57:04
Pace8:56 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:5124:377:5524:37
7:55
-
10K
6.21 mi11:42:3849:247:5724:47
7:59
+0:04
15K
9.32 mi12:06:531:13:397:5424:15
7:48
-0:11
20K
12.43 mi12:31:441:38:307:5624:51
8:00
+0:12
Half
13.11 mi12:37:111:43:577:565:27
7:59
-0:01
25K
15.53 mi12:56:532:03:397:5819:42
8:08
+0:09
30K
18.64 mi13:24:112:30:578:0627:18
8:47
+0:39
20M
20.00 mi13:36:432:43:298:1012:32
9:13
+0:26
21M
21.00 mi13:47:232:54:098:1810:40
10:40
+1:27
35K
21.75 mi13:53:513:00:378:186:28
8:39
-2:01
23M
23.00 mi14:05:223:12:088:2111:31
9:12
+0:33
24M
24.00 mi14:14:143:21:008:238:52
8:52
-0:20
40K
24.85 mi14:21:533:28:398:247:39
8:57
+0:05
25.2M
25.20 mi14:25:323:32:188:253:39
10:35
+1:38
Finish
26.22 mi14:34:153:41:018:268:43
8:33
-2:02

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

7:48 /mi

Average Pace

8:26 /mi

Slowest Pace

10:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:39

56% of race

Time at Steady Pace

59:00

27% of race

Time at Slower Pace

38:22

17% of race

Average Pace: 8:26 /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 mi11:17:5124:377:5524:37
7:55
#13445
10K
6.21 mi11:42:3849:247:5724:47
7:59
#13986
15K
9.32 mi12:06:531:13:397:5424:15
7:48
#13589
20K
12.43 mi12:31:441:38:307:5624:51
8:00
#13517
Half
13.11 mi12:37:111:43:577:565:27
7:59
#13549
25K
15.53 mi12:56:532:03:397:5819:42
8:08
#13546
30K
18.64 mi13:24:112:30:578:0627:18
8:47
#14095
20M
20.00 mi13:36:432:43:298:1012:32
9:13
#14365
21M
21.00 mi13:47:232:54:098:1810:40
10:40
#14841
35K
21.75 mi13:53:513:00:378:186:28
8:39
#14882
23M
23.00 mi14:05:223:12:088:2111:31
9:12
#15008
24M
24.00 mi14:14:143:21:008:238:52
8:52
#15054
40K
24.85 mi14:21:533:28:398:247:39
8:57
#15078
25.2M
25.20 mi14:25:323:32:188:253:39
10:35
#15163
Finish
26.22 mi14:34:153:41:018:268:43
8:33
#15182
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi134459743974312766(Top 48%)9423(Top 62%)9423(Top 849%)
10K6.21 mi3.10 mi13986-5419933-1909933-19014633(Top 55%)10177(Top 67%)10177(Top 917%)
15K9.32 mi3.11 mi13589+3979761+1729761+17212766(Top 48%)9423(Top 62%)9423(Top 849%)
20K12.43 mi3.11 mi13517+729708+539708+5313409(Top 50%)9628(Top 63%)9628(Top 867%)
Half13.11 mi0.68 mi13549-329727-199727-1914236(Top 53%)10008(Top 66%)10008(Top 902%)
25K15.53 mi2.42 mi13546+39699+289699+2813675(Top 51%)9644(Top 64%)9644(Top 869%)
30K18.64 mi3.11 mi14095-5499878-1799878-17915961(Top 60%)10463(Top 69%)10463(Top 943%)
20M20.00 mi1.36 mi14365-2709946-689946-6817642(Top 66%)11072(Top 73%)11072(Top 997%)
21M21.00 mi1.00 mi14841-47610132-18610132-18620039(Top 75%)12060(Top 79%)12060(Top 1086%)
35K21.75 mi0.75 mi14882-4110127+510127+516061(Top 60%)10311(Top 68%)10311(Top 929%)
23M23.00 mi1.25 mi15008-12610146-1910146-1917026(Top 64%)10700(Top 71%)10700(Top 964%)
24M24.00 mi1.00 mi15054-4610152-610152-616552(Top 62%)10424(Top 69%)10424(Top 939%)
40K24.85 mi0.85 mi15078-2410137+1510137+1515833(Top 59%)10054(Top 66%)10054(Top 906%)
25.2M25.20 mi0.35 mi15163-8510159-2210159-2219309(Top 73%)11600(Top 76%)11600(Top 1045%)
Finish26.22 mi1.02 mi15182-1910146+1310146+1315707(Top 59%)10036(Top 66%)10036(Top 904%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

12766

Males

9423

M60-64

9423

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

14633

Males

10177

M60-64

10177

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

12766

Males

9423

M60-64

9423

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

13409

Males

9628

M60-64

9628

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

14236

Males

10008

M60-64

10008

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

13675

Males

9644

M60-64

9644

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

15961

Males

10463

M60-64

10463

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

17642

Males

11072

M60-64

11072

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

20039

Males

12060

M60-64

12060

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

16061

Males

10311

M60-64

10311

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

17026

Males

10700

M60-64

10700

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

16552

Males

10424

M60-64

10424

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

15833

Males

10054

M60-64

10054

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19309

Males

11600

M60-64

11600

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

15707

Males

10036

M60-64

10036

Passing Analysis

Category:
Athletes Passed
1314
Passed By
3051
Net Change
-1737
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13445
5K → 10K109650-541#13445#13986
10K → 15K45255+397#13986#13589
15K → 20K217145+72#13589#13517
20K → Half2254-32#13517#13549
Half → 25K132129+3#13549#13546
25K → 30K72621-549#13546#14095
30K → 20M34304-270#14095#14365
20M → 21M9485-476#14365#14841
21M → 35K3879-41#14841#14882
35K → 23M47173-126#14882#15008
23M → 24M4490-46#15008#15054
24M → 40K6185-24#15054#15078
40K → 25.2M18103-85#15078#15163
25.2M → Finish5978-19#15163#15182
TOTALS13143051-1737
📊

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