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BOSTON MARATHON 2023

Chris Sanders

Bib: 12493•M

UT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 33%
Gender (Male)
#0 / 15176
Top 47%
Masters (Masters Men)
#0 / 9891
Top 35%
Division (M45-49)
#0 / 2252
Top 49%
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
7:22/mi
22:53
↑ 97↓ 3451.5%
10K· 6.21 mi
7:18/mi
45:34
↑ 79↓ 1380.4%
15K· 9.32 mi
7:18/mi
1:08:14
↑ 67↓ 78
20K· 12.43 mi
7:22/mi
1:31:08
↑ 106↓ 860.1%
Half· 13.11 mi
7:15/mi
1:36:05
↑ 19↓ 370.5%
25K· 15.53 mi
7:28/mi
1:54:12
↑ 66↓ 880.2%
30K· 18.64 mi
8:03/mi
2:19:12
↑ 181↓ 1480.2%
20M
8:01/mi
2:30:06
↑ 64↓ 500.2%
21M
8:03/mi
2:38:09
↑ 106↓ 241.6%
35K· 21.75 mi
7:01/mi
2:43:24
↑ 17↓ 861.7%
23M
7:20/mi
2:52:35
↑ 23↓ 630.6%
24M
7:27/mi
3:00:02
↓ 821.3%
40K· 24.85 mi
8:00/mi
3:06:52
↓ 200.3%
25.2M
9:05/mi
3:10:00
↑ 13↓ 160.2%
Finish· 26.22 mi
8:17/mi
3:18:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:05
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:42:21
Pace7:48 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:3322:537:2222:53
7:22
-
10K
6.21 mi11:17:1445:347:2022:41
7:18
-0:04
15K
9.32 mi11:39:541:08:147:1922:40
7:18
0:00
20K
12.43 mi12:02:481:31:087:2022:54
7:22
+0:04
Half
13.11 mi12:07:451:36:057:204:57
7:15
-0:07
25K
15.53 mi12:25:521:54:127:2118:07
7:28
+0:13
30K
18.64 mi12:50:522:19:127:2825:00
8:03
+0:35
20M
20.00 mi13:01:462:30:067:3010:54
8:01
-0:02
21M
21.00 mi13:09:492:38:097:328:03
8:03
+0:02
35K
21.75 mi13:15:042:43:247:315:15
7:01
-1:02
23M
23.00 mi13:24:152:52:357:309:11
7:20
+0:19
24M
24.00 mi13:31:423:00:027:307:27
7:27
+0:07
40K
24.85 mi13:38:323:06:527:316:50
8:00
+0:33
25.2M
25.20 mi13:41:403:10:007:323:08
9:05
+1:05
Finish
26.22 mi13:50:063:18:267:348:26
8:17
-0:48

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

7:01 /mi

Average Pace

7:34 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:15

3% of race

Time at Steady Pace

2:10:50

66% of race

Time at Slower Pace

1:02:21

31% of race

Average Pace: 7:34 /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 mi10:54:3322:537:2222:53
7:22
#8542
10K
6.21 mi11:17:1445:347:2022:41
7:18
#8670
15K
9.32 mi11:39:541:08:147:1922:40
7:18
#8612
20K
12.43 mi12:02:481:31:087:2022:54
7:22
#8499
Half
13.11 mi12:07:451:36:057:204:57
7:15
#8481
25K
15.53 mi12:25:521:54:127:2118:07
7:28
#8447
30K
18.64 mi12:50:522:19:127:2825:00
8:03
#8890
20M
20.00 mi13:01:462:30:067:3010:54
8:01
#8989
21M
21.00 mi13:09:492:38:097:328:03
8:03
#8895
35K
21.75 mi13:15:042:43:247:315:15
7:01
#8729
23M
23.00 mi13:24:152:52:357:309:11
7:20
#8499
24M
24.00 mi13:31:423:00:027:307:27
7:27
#8410
40K
24.85 mi13:38:323:06:527:316:50
8:00
#8456
25.2M
25.20 mi13:41:403:10:007:323:08
9:05
#8529
Finish
26.22 mi13:50:063:18:267:348:26
8:17
#8726
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi8542732573258509(Top 32%)7247(Top 48%)7247(Top 322%)
10K6.21 mi3.10 mi8670-1287380-557380-558860(Top 33%)7496(Top 49%)7496(Top 333%)
15K9.32 mi3.11 mi8612+587335+457335+458509(Top 32%)7247(Top 48%)7247(Top 322%)
20K12.43 mi3.11 mi8499+1137254+817254+818295(Top 31%)7073(Top 47%)7073(Top 314%)
Half13.11 mi0.68 mi8481+187241+137241+138237(Top 31%)7051(Top 46%)7051(Top 313%)
25K15.53 mi2.42 mi8447+347198+437198+438570(Top 32%)7187(Top 47%)7187(Top 319%)
30K18.64 mi3.11 mi8890-4437438-2407438-24011250(Top 42%)8468(Top 56%)8468(Top 376%)
20M20.00 mi1.36 mi8989-997479-417479-4110389(Top 39%)7947(Top 52%)7947(Top 353%)
21M21.00 mi1.00 mi8895+947402+777402+777660(Top 29%)6286(Top 41%)6286(Top 279%)
35K21.75 mi0.75 mi8729+1667288+1147288+1145469(Top 21%)4865(Top 32%)4865(Top 216%)
23M23.00 mi1.25 mi8499+2307119+1697119+1695508(Top 21%)4845(Top 32%)4845(Top 215%)
24M24.00 mi1.00 mi8410+897044+757044+757368(Top 28%)5938(Top 39%)5938(Top 264%)
40K24.85 mi0.85 mi8456-467050-67050-69963(Top 37%)7314(Top 48%)7314(Top 325%)
25.2M25.20 mi0.35 mi8529-737093-437093-4312919(Top 49%)8699(Top 57%)8699(Top 386%)
Finish26.22 mi1.02 mi8726-1977174-817174-8113903(Top 52%)9190(Top 61%)9190(Top 408%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

8509

Males

7247

M45-49

7247

5K→10K

3.1 - 6.2 mi

Top 33%
×5story building
+79ft-138ft

Overall

8860

Males

7496

M45-49

7496

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

8509

Males

7247

M45-49

7247

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8295

Males

7073

M45-49

7073

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8237

Males

7051

M45-49

7051

Half→25K

13.1 - 15.5 mi

Top 32%
×4story building
+66ft-88ft

Overall

8570

Males

7187

M45-49

7187

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

11250

Males

8468

M45-49

8468

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10389

Males

7947

M45-49

7947

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7660

Males

6286

M45-49

6286

21M→35K

21.0 - 21.8 mi

Top 21%
×7story building
+17ft-86ft

Overall

5469

Males

4865

M45-49

4865

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

5508

Males

4845

M45-49

4845

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

7368

Males

5938

M45-49

5938

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9963

Males

7314

M45-49

7314

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

12919

Males

8699

M45-49

8699

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13903

Males

9190

M45-49

9190

Passing Analysis

Category:
Athletes Passed
1524
Passed By
1708
Net Change
-184
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8542
5K → 10K193321-128#8542#8670
10K → 15K165107+58#8670#8612
15K → 20K19077+113#8612#8499
20K → Half3618+18#8499#8481
Half → 25K11278+34#8481#8447
25K → 30K68511-443#8447#8890
30K → 20M56155-99#8890#8989
20M → 21M11420+94#8989#8895
21M → 35K1682+166#8895#8729
35K → 23M2355+230#8729#8499
23M → 24M11223+89#8499#8410
24M → 40K4288-46#8410#8456
40K → 25.2M1285-73#8456#8529
25.2M → Finish21218-197#8529#8726
TOTALS15241708-184
📊

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