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BOSTON MARATHON 2023

Todd Arndt

Bib: 9439•M

ID

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 19%
Gender (Male)
#0 / 15176
Top 31%
Masters (Masters Men)
#0 / 9891
Top 17%
Division (M50-54)
#0 / 2052
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:25
Rank: #5505
Start → 5K
21:25 | 6:54/mi
10K· 6.21 mi
43:08
Rank: #6131 (-626)
5K → 10K
21:43 | 6:59/mi
15K· 9.32 mi
1:04:41
Rank: #6121 (+10)
10K → 15K
21:33 | 6:56/mi
20K· 12.43 mi
1:26:25
Rank: #6065 (+56)
15K → 20K
21:44 | 7:00/mi
Half· 13.11 mi
1:31:06
Rank: #6048 (+17)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:48:12
Rank: #6002 (+46)
Half → 25K
17:06 | 7:03/mi
30K· 18.64 mi
2:10:17
Rank: #5741 (+261)
25K → 30K
22:05 | 7:06/mi
20M
2:19:51
Rank: #5601 (+140)
30K → 20M
9:34 | 7:02/mi
21M
2:27:13
Rank: #5481 (+120)
20M → 21M
7:22 | 7:22/mi
35K· 21.75 mi
2:32:21
Rank: #5414 (+67)
21M → 35K
5:08 | 6:52/mi
23M
2:41:23
Rank: #5326 (+88)
35K → 23M
9:02 | 7:13/mi
24M
2:48:38
Rank: #5309 (+17)
23M → 24M
7:15 | 7:15/mi
40K· 24.85 mi
2:54:50
Rank: #5248 (+61)
24M → 40K
6:12 | 7:15/mi
25.2M
2:57:30
Rank: #5227 (+21)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
3:04:27
Rank: #5146 (+81)
25.2M → Finish
6:57 | 6:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:06
Pace6:57 /mi
2nd Half
Distance13.11 mi
Time1:33:21
Pace7:07 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:5121:256:5421:25
6:54
-
10K
6.21 mi11:08:3443:086:5621:43
6:59
+0:05
15K
9.32 mi11:30:071:04:416:5621:33
6:56
-0:03
20K
12.43 mi11:51:511:26:256:5721:44
7:00
+0:04
Half
13.11 mi11:56:321:31:066:574:41
6:52
-0:08
25K
15.53 mi12:13:381:48:126:5817:06
7:03
+0:11
30K
18.64 mi12:35:432:10:176:5922:05
7:06
+0:03
20M
20.00 mi12:45:172:19:517:009:34
7:02
-0:04
21M
21.00 mi12:52:392:27:137:017:22
7:22
+0:20
35K
21.75 mi12:57:472:32:217:005:08
6:52
-0:30
23M
23.00 mi13:06:492:41:237:019:02
7:13
+0:21
24M
24.00 mi13:14:042:48:387:027:15
7:15
+0:02
40K
24.85 mi13:20:162:54:507:026:12
7:15
0:00
25.2M
25.20 mi13:22:562:57:307:032:40
7:44
+0:29
Finish
26.22 mi13:29:533:04:277:026:57
6:49
-0:55

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

6:49 /mi

Average Pace

7:02 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:01:47

99% of race

Time at Steady Pace

2:40

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:02 /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 mi10:46:5121:256:5421:25
6:54
#5505
10K
6.21 mi11:08:3443:086:5621:43
6:59
#6131
15K
9.32 mi11:30:071:04:416:5621:33
6:56
#6121
20K
12.43 mi11:51:511:26:256:5721:44
7:00
#6065
Half
13.11 mi11:56:321:31:066:574:41
6:52
#6048
25K
15.53 mi12:13:381:48:126:5817:06
7:03
#6002
30K
18.64 mi12:35:432:10:176:5922:05
7:06
#5741
20M
20.00 mi12:45:172:19:517:009:34
7:02
#5601
21M
21.00 mi12:52:392:27:137:017:22
7:22
#5481
35K
21.75 mi12:57:472:32:217:005:08
6:52
#5414
23M
23.00 mi13:06:492:41:237:019:02
7:13
#5326
24M
24.00 mi13:14:042:48:387:027:15
7:15
#5309
40K
24.85 mi13:20:162:54:507:026:12
7:15
#5248
25.2M
25.20 mi13:22:562:57:307:032:40
7:44
#5227
Finish
26.22 mi13:29:533:04:277:026:57
6:49
#5146
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi5505507850786171(Top 23%)5593(Top 37%)5593(Top 273%)
10K6.21 mi3.10 mi6131-6265586-5085586-5086740(Top 25%)6046(Top 40%)6046(Top 295%)
15K9.32 mi3.11 mi6121+105572+145572+146171(Top 23%)5593(Top 37%)5593(Top 273%)
20K12.43 mi3.11 mi6065+565527+455527+455946(Top 22%)5432(Top 36%)5432(Top 265%)
Half13.11 mi0.68 mi6048+175514+135514+135733(Top 22%)5265(Top 35%)5265(Top 257%)
25K15.53 mi2.42 mi6002+465483+315483+315849(Top 22%)5328(Top 35%)5328(Top 260%)
30K18.64 mi3.11 mi5741+2615264+2195264+2194972(Top 19%)4571(Top 30%)4571(Top 223%)
20M20.00 mi1.36 mi5601+1405141+1235141+1234279(Top 16%)3950(Top 26%)3950(Top 192%)
21M21.00 mi1.00 mi5481+1205033+1085033+1083992(Top 15%)3684(Top 24%)3684(Top 180%)
35K21.75 mi0.75 mi5414+674972+614972+614581(Top 17%)4172(Top 27%)4172(Top 203%)
23M23.00 mi1.25 mi5326+884890+824890+824874(Top 18%)4373(Top 29%)4373(Top 213%)
24M24.00 mi1.00 mi5309+174868+224868+226014(Top 23%)5112(Top 34%)5112(Top 249%)
40K24.85 mi0.85 mi5248+614808+604808+605140(Top 19%)4436(Top 29%)4436(Top 216%)
25.2M25.20 mi0.35 mi5227+214789+194789+194996(Top 19%)4273(Top 28%)4273(Top 208%)
Finish26.22 mi1.02 mi5146+814715+744715+744190(Top 16%)3694(Top 24%)3694(Top 180%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6171

Males

5593

M50-54

5593

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

6740

Males

6046

M50-54

6046

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6171

Males

5593

M50-54

5593

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

5946

Males

5432

M50-54

5432

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

5733

Males

5265

M50-54

5265

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

5849

Males

5328

M50-54

5328

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

4972

Males

4571

M50-54

4571

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4279

Males

3950

M50-54

3950

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

3992

Males

3684

M50-54

3684

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4581

Males

4172

M50-54

4172

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

4874

Males

4373

M50-54

4373

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

6014

Males

5112

M50-54

5112

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5140

Males

4436

M50-54

4436

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

4996

Males

4273

M50-54

4273

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4190

Males

3694

M50-54

3694

Passing Analysis

Category:
Athletes Passed
1410
Passed By
1051
Net Change
+359
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5505
5K → 10K32658-626#5505#6131
10K → 15K129119+10#6131#6121
15K → 20K12973+56#6121#6065
20K → Half236+17#6065#6048
Half → 25K9953+46#6048#6002
25K → 30K28221+261#6002#5741
30K → 20M1455+140#5741#5601
20M → 21M1255+120#5601#5481
21M → 35K747+67#5481#5414
35K → 23M11022+88#5414#5326
23M → 24M5437+17#5326#5309
24M → 40K8120+61#5309#5248
40K → 25.2M3211+21#5248#5227
25.2M → Finish9514+81#5227#5146
TOTALS14101051+359
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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