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BOSTON MARATHON 2023

Chris Hartshorn

Bib: 553•M

MA

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

Start
0:00:00
Race begins
5K· 3.11 mi
18:06
Rank: #418
Start → 5K
18:06 | 5:50/mi
10K· 6.21 mi
36:16
Rank: #446 (-28)
5K → 10K
18:10 | 5:51/mi
15K· 9.32 mi
54:40
Rank: #474 (-28)
10K → 15K
18:24 | 5:55/mi
20K· 12.43 mi
1:13:05
Rank: #461 (+13)
15K → 20K
18:25 | 5:56/mi
Half· 13.11 mi
1:17:06
Rank: #461
20K → Half
4:01 | 5:53/mi
25K· 15.53 mi
1:31:14
Rank: #433 (+28)
Half → 25K
14:08 | 5:50/mi
30K· 18.64 mi
1:49:21
Rank: #375 (+58)
25K → 30K
18:07 | 5:50/mi
20M
1:57:17
Rank: #360 (+15)
30K → 20M
7:56 | 5:50/mi
21M
2:03:25
Rank: #342 (+18)
20M → 21M
6:08 | 6:08/mi
35K· 21.75 mi
2:07:39
Rank: #328 (+14)
21M → 35K
4:14 | 5:40/mi
23M
2:15:03
Rank: #315 (+13)
35K → 23M
7:24 | 5:55/mi
24M
2:20:46
Rank: #304 (+11)
23M → 24M
5:43 | 5:43/mi
40K· 24.85 mi
2:25:49
Rank: #287 (+17)
24M → 40K
5:03 | 5:54/mi
25.2M
2:28:02
Rank: #283 (+4)
40K → 25.2M
2:13 | 6:26/mi
Finish· 26.22 mi
2:34:07
Rank: #280 (+3)
25.2M → Finish
6:05 | 5:58/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:17:06
Pace5:53 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:17:01
Pace5:53 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:1018:065:5018:06
5:50
-
10K
6.21 mi10:36:2036:165:5018:10
5:51
+0:01
15K
9.32 mi10:54:4454:405:5218:24
5:55
+0:04
20K
12.43 mi11:13:091:13:055:5318:25
5:56
+0:01
Half
13.11 mi11:17:101:17:065:534:01
5:53
-0:03
25K
15.53 mi11:31:181:31:145:5214:08
5:50
-0:03
30K
18.64 mi11:49:251:49:215:5218:07
5:50
0:00
20M
20.00 mi11:57:211:57:175:527:56
5:50
0:00
21M
21.00 mi12:03:292:03:255:536:08
6:08
+0:18
35K
21.75 mi12:07:432:07:395:524:14
5:40
-0:28
23M
23.00 mi12:15:072:15:035:527:24
5:55
+0:15
24M
24.00 mi12:20:502:20:465:525:43
5:43
-0:12
40K
24.85 mi12:25:532:25:495:525:03
5:54
+0:11
25.2M
25.20 mi12:28:062:28:025:522:13
6:26
+0:32
Finish
26.22 mi12:34:112:34:075:536:05
5:58
-0:28

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

5:40 /mi

Average Pace

5:53 /mi

Slowest Pace

6:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

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

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 mi10:18:1018:065:5018:06
5:50
#418
10K
6.21 mi10:36:2036:165:5018:10
5:51
#446
15K
9.32 mi10:54:4454:405:5218:24
5:55
#474
20K
12.43 mi11:13:091:13:055:5318:25
5:56
#461
Half
13.11 mi11:17:101:17:065:534:01
5:53
#461
25K
15.53 mi11:31:181:31:145:5214:08
5:50
#433
30K
18.64 mi11:49:251:49:215:5218:07
5:50
#375
20M
20.00 mi11:57:211:57:175:527:56
5:50
#360
21M
21.00 mi12:03:292:03:255:536:08
6:08
#342
35K
21.75 mi12:07:432:07:395:524:14
5:40
#328
23M
23.00 mi12:15:072:15:035:527:24
5:55
#315
24M
24.00 mi12:20:502:20:465:525:43
5:43
#304
40K
24.85 mi12:25:532:25:495:525:03
5:54
#287
25.2M
25.20 mi12:28:062:28:025:522:13
6:26
#283
Finish
26.22 mi12:34:112:34:075:536:05
5:58
#280
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi418383383552(Top 2%)510(Top 3%)510(Top 25%)
10K6.21 mi3.10 mi446-28411-28411-28499(Top 2%)458(Top 3%)458(Top 22%)
15K9.32 mi3.11 mi474-28438-27438-27552(Top 2%)510(Top 3%)510(Top 25%)
20K12.43 mi3.11 mi461+13425+13425+13456(Top 2%)419(Top 3%)419(Top 20%)
Half13.11 mi0.68 mi461425425498(Top 2%)460(Top 3%)460(Top 22%)
25K15.53 mi2.42 mi433+28398+27398+27314(Top 1%)286(Top 2%)286(Top 14%)
30K18.64 mi3.11 mi375+58343+55343+55181(Top 0.7%)158(Top 1%)158(Top 8%)
20M20.00 mi1.36 mi360+15328+15328+15189(Top 0.7%)167(Top 1%)167(Top 8%)
21M21.00 mi1.00 mi342+18310+18310+18186(Top 0.7%)165(Top 1%)165(Top 8%)
35K21.75 mi0.75 mi328+14297+13297+13185(Top 0.7%)162(Top 1%)162(Top 8%)
23M23.00 mi1.25 mi315+13284+13284+13222(Top 0.8%)198(Top 1%)198(Top 10%)
24M24.00 mi1.00 mi304+11274+10274+10185(Top 0.7%)162(Top 1%)162(Top 8%)
40K24.85 mi0.85 mi287+17258+16258+16224(Top 0.8%)201(Top 1%)201(Top 10%)
25.2M25.20 mi0.35 mi283+4255+3255+3376(Top 1%)354(Top 2%)354(Top 17%)
Finish26.22 mi1.02 mi280+3252+3252+3649(Top 2%)618(Top 4%)618(Top 30%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

552

Males

510

M50-54

510

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

499

Males

458

M50-54

458

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

552

Males

510

M50-54

510

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

456

Males

419

M50-54

419

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

498

Males

460

M50-54

460

Half→25K

13.1 - 15.5 mi

Top 1%
×4stories
+66ft-88ft

Overall

314

Males

286

M50-54

286

25K→30K

15.5 - 18.6 mi

Top 0.7%
×9stories
+181ft-148ft

Overall

181

Males

158

M50-54

158

30K→20M

18.6 - 20.0 mi

Top 0.7%
×5stories
+64ft-50ft

Overall

189

Males

167

M50-54

167

20M→21M

20.0 - 21.0 mi

Top 0.7%
×8stories
+106ft-24ft

Overall

186

Males

165

M50-54

165

21M→35K

21.0 - 21.8 mi

Top 0.7%
×7stories
+17ft-86ft

Overall

185

Males

162

M50-54

162

35K→23M

21.8 - 23.0 mi

Top 0.8%
×5stories
+23ft-63ft

Overall

222

Males

198

M50-54

198

23M→24M

23.0 - 24.0 mi

Top 0.7%
×6stories
+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%
×2stories
+22ft-21ft

Overall

649

Males

618

M50-54

618

Passing Analysis

Category:
Athletes Passed
238
Passed By
100
Net Change
+138
SegmentAthletes PassedPassed 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 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