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BOSTON MARATHON 2023

Nicholas Anderson

Bib: 4343•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 23%
Gender (Male)
#0 / 15176
Top 36%
Masters (Masters Men)
#0 / 9891
Top 22%
Division (M40-44)
#0 / 2241
Top 48%
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
7:05/mi
22:00
↑ 97↓ 3451.5%
10K· 6.21 mi
7:01/mi
43:48
↑ 79↓ 1380.4%
15K· 9.32 mi
6:54/mi
1:05:15
↑ 67↓ 78
20K· 12.43 mi
7:00/mi
1:27:01
↑ 106↓ 860.1%
Half· 13.11 mi
6:53/mi
1:31:43
↑ 19↓ 370.5%
25K· 15.53 mi
7:01/mi
1:48:43
↑ 66↓ 880.2%
30K· 18.64 mi
7:14/mi
2:11:10
↑ 181↓ 1480.2%
20M
7:19/mi
2:21:06
↑ 64↓ 500.2%
21M
7:40/mi
2:28:46
↑ 106↓ 241.6%
35K· 21.75 mi
7:08/mi
2:34:06
↑ 17↓ 861.7%
23M
7:34/mi
2:43:34
↑ 23↓ 630.6%
24M
7:38/mi
2:51:12
↓ 821.3%
40K· 24.85 mi
7:42/mi
2:57:47
↓ 200.3%
25.2M
9:20/mi
3:01:00
↑ 13↓ 160.2%
Finish· 26.22 mi
7:29/mi
3:08:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:43
Pace7:00 /mi
2nd Half
Distance13.11 mi
Time1:36:55
Pace7:24 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0522:007:0522:00
7:05
-
10K
6.21 mi10:45:5343:487:0321:48
7:01
-0:04
15K
9.32 mi11:07:201:05:157:0021:27
6:54
-0:07
20K
12.43 mi11:29:061:27:017:0021:46
7:00
+0:06
Half
13.11 mi11:33:481:31:437:004:42
6:53
-0:07
25K
15.53 mi11:50:481:48:437:0017:00
7:01
+0:08
30K
18.64 mi12:13:152:11:107:0222:27
7:14
+0:13
20M
20.00 mi12:23:112:21:067:039:56
7:19
+0:05
21M
21.00 mi12:30:512:28:467:057:40
7:40
+0:21
35K
21.75 mi12:36:112:34:067:055:20
7:08
-0:32
23M
23.00 mi12:45:392:43:347:079:28
7:34
+0:26
24M
24.00 mi12:53:172:51:127:087:38
7:38
+0:04
40K
24.85 mi12:59:522:57:477:096:35
7:42
+0:04
25.2M
25.20 mi13:03:053:01:007:113:13
9:20
+1:38
Finish
26.22 mi13:10:433:08:387:127:38
7:29
-1:51

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

6:53 /mi

Average Pace

7:12 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

26:09

14% of race

Time at Steady Pace

2:07:55

68% of race

Time at Slower Pace

34:34

18% of race

Average Pace: 7:12 /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 mi10:24:0522:007:0522:00
7:05
#6751
10K
6.21 mi10:45:5343:487:0321:48
7:01
#6792
15K
9.32 mi11:07:201:05:157:0021:27
6:54
#6514
20K
12.43 mi11:29:061:27:017:0021:46
7:00
#6364
Half
13.11 mi11:33:481:31:437:004:42
6:53
#6339
25K
15.53 mi11:50:481:48:437:0017:00
7:01
#6209
30K
18.64 mi12:13:152:11:107:0222:27
7:14
#6037
20M
20.00 mi12:23:112:21:067:039:56
7:19
#5976
21M
21.00 mi12:30:512:28:467:057:40
7:40
#5897
35K
21.75 mi12:36:112:34:067:055:20
7:08
#5875
23M
23.00 mi12:45:392:43:347:079:28
7:34
#5873
24M
24.00 mi12:53:172:51:127:087:38
7:38
#5920
40K
24.85 mi12:59:522:57:477:096:35
7:42
#5952
25.2M
25.20 mi13:03:053:01:007:113:13
9:20
#6046
Finish
26.22 mi13:10:433:08:387:127:38
7:29
#6093
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6751608860885984(Top 22%)5452(Top 36%)5452(Top 243%)
10K6.21 mi3.10 mi6792-416109-216109-216931(Top 26%)6187(Top 41%)6187(Top 276%)
15K9.32 mi3.11 mi6514+2785878+2315878+2315984(Top 22%)5452(Top 36%)5452(Top 243%)
20K12.43 mi3.11 mi6364+1505756+1225756+1226018(Top 23%)5487(Top 36%)5487(Top 245%)
Half13.11 mi0.68 mi6339+255735+215735+215922(Top 22%)5431(Top 36%)5431(Top 242%)
25K15.53 mi2.42 mi6209+1305635+1005635+1005646(Top 21%)5178(Top 34%)5178(Top 231%)
30K18.64 mi3.11 mi6037+1725493+1425493+1425633(Top 21%)5099(Top 34%)5099(Top 228%)
20M20.00 mi1.36 mi5976+615433+605433+605688(Top 21%)5063(Top 33%)5063(Top 226%)
21M21.00 mi1.00 mi5897+795361+725361+725446(Top 20%)4799(Top 32%)4799(Top 214%)
35K21.75 mi0.75 mi5875+225339+225339+226062(Top 23%)5270(Top 35%)5270(Top 235%)
23M23.00 mi1.25 mi5873+25325+145325+146778(Top 25%)5676(Top 37%)5676(Top 253%)
24M24.00 mi1.00 mi5920-475347-225347-228583(Top 32%)6650(Top 44%)6650(Top 297%)
40K24.85 mi0.85 mi5952-325360-135360-137930(Top 30%)6193(Top 41%)6193(Top 276%)
25.2M25.20 mi0.35 mi6046-945430-705430-7014215(Top 53%)9308(Top 61%)9308(Top 415%)
Finish26.22 mi1.02 mi6093-475450-205450-208438(Top 32%)6414(Top 42%)6414(Top 286%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21story building
+97ft-345ft

Overall

5984

Males

5452

M40-44

5452

5K→10K

3.1 - 6.2 mi

Top 26%
×5story building
+79ft-138ft

Overall

6931

Males

6187

M40-44

6187

10K→15K

6.2 - 9.3 mi

Top 22%
×3story building
+67ft-78ft

Overall

5984

Males

5452

M40-44

5452

15K→20K

9.3 - 12.4 mi

Top 23%
×5story building
+106ft-86ft

Overall

6018

Males

5487

M40-44

5487

20K→Half

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

5922

Males

5431

M40-44

5431

Half→25K

13.1 - 15.5 mi

Top 21%
×4story building
+66ft-88ft

Overall

5646

Males

5178

M40-44

5178

25K→30K

15.5 - 18.6 mi

Top 21%
×9story building
+181ft-148ft

Overall

5633

Males

5099

M40-44

5099

30K→20M

18.6 - 20.0 mi

Top 21%
×5story building
+64ft-50ft

Overall

5688

Males

5063

M40-44

5063

20M→21M

20.0 - 21.0 mi

Top 20%
×8story building
+106ft-24ft

Overall

5446

Males

4799

M40-44

4799

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6062

Males

5270

M40-44

5270

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

6778

Males

5676

M40-44

5676

23M→24M

23.0 - 24.0 mi

Top 32%
×6story building
+12ft-82ft

Overall

8583

Males

6650

M40-44

6650

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

7930

Males

6193

M40-44

6193

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14215

Males

9308

M40-44

9308

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

8438

Males

6414

M40-44

6414

Passing Analysis

Category:
Athletes Passed
1460
Passed By
802
Net Change
+658
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6751
5K → 10K177218-41#6751#6792
10K → 15K30325+278#6792#6514
15K → 20K18434+150#6514#6364
20K → Half305+25#6364#6339
Half → 25K14818+130#6339#6209
25K → 30K21139+172#6209#6037
30K → 20M8726+61#6037#5976
20M → 21M9819+79#5976#5897
21M → 35K4624+22#5897#5875
35K → 23M5452+2#5875#5873
23M → 24M4693-47#5873#5920
24M → 40K4173-32#5920#5952
40K → 25.2M599-94#5952#6046
25.2M → Finish3077-47#6046#6093
TOTALS1460802+658
📊

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