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BOSTON MARATHON 2023

Niel Smith

Bib: 13694•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 34%
Gender (Male)
#0 / 15176
Top 48%
Masters (Masters Men)
#0 / 9891
Top 37%
Division (M50-54)
#0 / 2052
Top 33%
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
7:28/mi
23:13
↑ 97↓ 3451.5%
10K· 6.21 mi
7:12/mi
45:35
↑ 79↓ 1380.4%
15K· 9.32 mi
7:18/mi
1:08:16
↑ 67↓ 78
20K· 12.43 mi
7:25/mi
1:31:18
↑ 106↓ 860.1%
Half· 13.11 mi
7:18/mi
1:36:17
↑ 19↓ 370.5%
25K· 15.53 mi
7:29/mi
1:54:26
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:18:23
↑ 181↓ 1480.2%
20M
8:18/mi
2:29:40
↑ 64↓ 500.2%
21M
8:26/mi
2:38:06
↑ 106↓ 241.6%
35K· 21.75 mi
7:37/mi
2:43:48
↑ 17↓ 861.7%
23M
8:02/mi
2:53:52
↑ 23↓ 630.6%
24M
7:52/mi
3:01:44
↓ 821.3%
40K· 24.85 mi
8:01/mi
3:08:35
↓ 200.3%
25.2M
8:39/mi
3:11:34
↑ 13↓ 160.2%
Finish· 26.22 mi
7:27/mi
3:19:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:17
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:42:53
Pace7:51 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3723:137:2823:13
7:28
-
10K
6.21 mi11:13:5945:357:2022:22
7:12
-0:16
15K
9.32 mi11:36:401:08:167:1922:41
7:18
+0:06
20K
12.43 mi11:59:421:31:187:2123:02
7:25
+0:07
Half
13.11 mi12:04:411:36:177:214:59
7:18
-0:07
25K
15.53 mi12:22:501:54:267:2218:09
7:29
+0:11
30K
18.64 mi12:46:472:18:237:2523:57
7:43
+0:14
20M
20.00 mi12:58:042:29:407:2911:17
8:18
+0:35
21M
21.00 mi13:06:302:38:067:328:26
8:26
+0:08
35K
21.75 mi13:12:122:43:487:325:42
7:37
-0:49
23M
23.00 mi13:22:162:53:527:3410:04
8:02
+0:25
24M
24.00 mi13:30:083:01:447:347:52
7:52
-0:10
40K
24.85 mi13:36:593:08:357:356:51
8:01
+0:09
25.2M
25.20 mi13:39:583:11:347:362:59
8:39
+0:38
Finish
26.22 mi13:47:343:19:107:367:36
7:27
-1:12

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

7:12 /mi

Average Pace

7:36 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

50:02

25% of race

Time at Steady Pace

1:41:39

51% of race

Time at Slower Pace

47:29

24% of race

Average Pace: 7:36 /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 mi10:51:3723:137:2823:13
7:28
#9382
10K
6.21 mi11:13:5945:357:2022:22
7:12
#8691
15K
9.32 mi11:36:401:08:167:1922:41
7:18
#8642
20K
12.43 mi11:59:421:31:187:2123:02
7:25
#8604
Half
13.11 mi12:04:411:36:177:214:59
7:18
#8599
25K
15.53 mi12:22:501:54:267:2218:09
7:29
#8568
30K
18.64 mi12:46:472:18:237:2523:57
7:43
#8543
20M
20.00 mi12:58:042:29:407:2911:17
8:18
#8815
21M
21.00 mi13:06:302:38:067:328:26
8:26
#8872
35K
21.75 mi13:12:122:43:487:325:42
7:37
#8873
23M
23.00 mi13:22:162:53:527:3410:04
8:02
#8921
24M
24.00 mi13:30:083:01:447:347:52
7:52
#8963
40K
24.85 mi13:36:593:08:357:356:51
8:01
#8982
25.2M
25.20 mi13:39:583:11:347:362:59
8:39
#8985
Finish
26.22 mi13:47:343:19:107:367:36
7:27
#8932
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi9382779977998550(Top 32%)7274(Top 48%)7274(Top 354%)
10K6.21 mi3.10 mi8691+6917394+4057394+4058088(Top 30%)7004(Top 46%)7004(Top 341%)
15K9.32 mi3.11 mi8642+497356+387356+388550(Top 32%)7274(Top 48%)7274(Top 354%)
20K12.43 mi3.11 mi8604+387318+387318+388612(Top 32%)7266(Top 48%)7266(Top 354%)
Half13.11 mi0.68 mi8599+57316+27316+28607(Top 32%)7271(Top 48%)7271(Top 354%)
25K15.53 mi2.42 mi8568+317271+457271+458665(Top 33%)7243(Top 48%)7243(Top 353%)
30K18.64 mi3.11 mi8543+257220+517220+518703(Top 33%)7100(Top 47%)7100(Top 346%)
20M20.00 mi1.36 mi8815-2727374-1547374-15412354(Top 46%)8837(Top 58%)8837(Top 431%)
21M21.00 mi1.00 mi8872-577392-187392-1810043(Top 38%)7622(Top 50%)7622(Top 371%)
35K21.75 mi0.75 mi8873-17374+187374+189367(Top 35%)7272(Top 48%)7272(Top 354%)
23M23.00 mi1.25 mi8921-487373+17373+110010(Top 38%)7479(Top 49%)7479(Top 364%)
24M24.00 mi1.00 mi8963-427370+37370+310246(Top 38%)7519(Top 50%)7519(Top 366%)
40K24.85 mi0.85 mi8982-197366+47366+410099(Top 38%)7380(Top 49%)7380(Top 360%)
25.2M25.20 mi0.35 mi8985-37361+57361+510376(Top 39%)7474(Top 49%)7474(Top 364%)
Finish26.22 mi1.02 mi8932+537310+517310+518217(Top 31%)6290(Top 41%)6290(Top 307%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

8550

Males

7274

M50-54

7274

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

8088

Males

7004

M50-54

7004

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

8550

Males

7274

M50-54

7274

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

8612

Males

7266

M50-54

7266

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8607

Males

7271

M50-54

7271

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

8665

Males

7243

M50-54

7243

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

8703

Males

7100

M50-54

7100

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

12354

Males

8837

M50-54

8837

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10043

Males

7622

M50-54

7622

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

9367

Males

7272

M50-54

7272

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10010

Males

7479

M50-54

7479

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10246

Males

7519

M50-54

7519

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10099

Males

7380

M50-54

7380

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10376

Males

7474

M50-54

7474

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8217

Males

6290

M50-54

6290

Passing Analysis

Category:
Athletes Passed
1779
Passed By
1329
Net Change
+450
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9382
5K → 10K74554+691#9382#8691
10K → 15K164115+49#8691#8642
15K → 20K147109+38#8642#8604
20K → Half2924+5#8604#8599
Half → 25K10271+31#8599#8568
25K → 30K187162+25#8568#8543
30K → 20M27299-272#8543#8815
20M → 21M60117-57#8815#8872
21M → 35K4647-1#8872#8873
35K → 23M57105-48#8873#8921
23M → 24M58100-42#8921#8963
24M → 40K4261-19#8963#8982
40K → 25.2M2932-3#8982#8985
25.2M → Finish8633+53#8985#8932
TOTALS17791329+450
📊

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