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BOSTON MARATHON 2023

Chris Hartshorn

MA

Bib: 553 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 1%
Gender (Male)
#0 / 15176
Top 2%
Masters (Masters Men)
#0 / 9891
Top 0.3%
Division (M50-54)
#0 / 2052
Top 0.1%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
5:50/mi
18:06
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
5:51/mi
36:16
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
5:55/mi
54:40
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
5:56/mi
1:13:05
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
5:53/mi
1:17:06
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
5:50/mi
1:31:14
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
5:50/mi
1:49:21
↑ 181↓ 1480.2%
138 ft elev
20M
5:50/mi
1:57:17
↑ 64↓ 500.2%
148 ft elev
21M
6:08/mi
2:03:25
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
5:40/mi
2:07:39
↑ 17↓ 861.7%
156 ft elev
23M
5:55/mi
2:15:03
↑ 23↓ 630.6%
116 ft elev
24M
5:43/mi
2:20:46
↓ 821.3%
34 ft elev
40K· 24.85 mi
5:54/mi
2:25:49
↓ 200.3%
20 ft elev
25.2M
6:26/mi
2:28:02
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
5:58/mi
2:34:07
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:17:065:53 /mi⚖️ balanced
2nd Half
1:17:015:53 /mi⚖️ balanced
Even split — consistent pacing between halves
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
18:065:503.11 mi18:06
5:50
-
10K
36:165:503.10 mi18:10
5:51
+0:01
15K
54:405:523.11 mi18:24
5:55
+0:04
20K
1:13:055:533.11 mi18:25
5:56
+0:01
Half(13.11 mi)
1:17:065:530.68 mi4:01
5:53
-0:03
25K
1:31:145:522.42 mi14:08
5:50
-0:03
30K
1:49:215:523.11 mi18:07
5:50
0:00
20M
1:57:175:521.36 mi7:56
5:50
0:00
21M
2:03:255:531.00 mi6:08
6:08
+0:18
35K
2:07:395:520.75 mi4:14
5:40
-0:28
23M
2:15:035:521.25 mi7:24
5:55
+0:15
24M
2:20:465:521.00 mi5:43
5:43
-0:12
40K
2:25:495:520.85 mi5:03
5:54
+0:11
25.2M
2:28:025:520.35 mi2:13
6:26
+0:32
Finish(26.22 mi)
2:34:075:531.02 mi6:05
5:58
-0:28
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

5:40 /mi

Average Pace

5:53 /mi

Slowest Pace

6:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:31:54

99% of race

Time at Steady Pace

2:13

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:53 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi418383383552510510
10K3.10 mi446-28411-28411-28499458458
15K3.11 mi474-28438-27438-27552510510
20K3.11 mi461+13425+13425+13456419419
Half(13.11 mi)0.68 mi461425425498460460
25K2.42 mi433+28398+27398+27314286286
30K3.11 mi375+58343+55343+55181158158
20M1.36 mi360+15328+15328+15189167167
21M1.00 mi342+18310+18310+18186165165
35K0.75 mi328+14297+13297+13185162162
23M1.25 mi315+13284+13284+13222198198
24M1.00 mi304+11274+10274+10185162162
40K0.85 mi287+17258+16258+16224201201
25.2M0.35 mi283+4255+3255+3376354354
Finish(26.22 mi)1.02 mi280+3252+3252+3649618618

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21story building
+97ft-345ft

Overall

552

Males

510

M50-54

510

5K→10K

3.1 - 6.2 mi

Top 2%
×5story building
+79ft-138ft

Overall

499

Males

458

M50-54

458

10K→15K

6.2 - 9.3 mi

Top 2%
×3story building
+67ft-78ft

Overall

552

Males

510

M50-54

510

15K→20K

9.3 - 12.4 mi

Top 2%
×5story building
+106ft-86ft

Overall

456

Males

419

M50-54

419

20K→Half

12.4 - 13.1 mi

Top 2%
×2story building
+19ft-37ft

Overall

498

Males

460

M50-54

460

Half→25K

13.1 - 15.5 mi

Top 1%
×4story building
+66ft-88ft

Overall

314

Males

286

M50-54

286

25K→30K

15.5 - 18.6 mi

Top 0.7%
×9story building
+181ft-148ft

Overall

181

Males

158

M50-54

158

30K→20M

18.6 - 20.0 mi

Top 0.7%
×5story building
+64ft-50ft

Overall

189

Males

167

M50-54

167

20M→21M

20.0 - 21.0 mi

Top 0.7%
×8story building
+106ft-24ft

Overall

186

Males

165

M50-54

165

21M→35K

21.0 - 21.8 mi

Top 0.7%
×7story building
+17ft-86ft

Overall

185

Males

162

M50-54

162

35K→23M

21.8 - 23.0 mi

Top 0.8%
×5story building
+23ft-63ft

Overall

222

Males

198

M50-54

198

23M→24M

23.0 - 24.0 mi

Top 0.7%
×6story building
+12ft-82ft

Overall

185

Males

162

M50-54

162

24M→40K

24.0 - 24.9 mi

Top 0.8%
×1story
+6ft-20ft

Overall

224

Males

201

M50-54

201

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

376

Males

354

M50-54

354

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2story building
+22ft-21ft

Overall

649

Males

618

M50-54

618

Passing Analysis

Category:
Passed
238
Passed By
100
Net Change
+138
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#418
5K → 10K735-28#418#446
10K → 15K937-28#446#474
15K → 20K229+13#474#461
20K → Half440#461#461
Half → 25K280+28#461#433
25K → 30K580+58#433#375
30K → 20M161+15#375#360
20M → 21M180+18#360#342
21M → 35K140+14#342#328
35K → 23M163+13#328#315
23M → 24M143+11#315#304
24M → 40K192+17#304#287
40K → 25.2M51+4#287#283
25.2M → Finish85+3#283#280
TOTALS238100+138

Passing Charts

Category:
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Passing Circle

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Position Flow

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Race Lanes

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