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BOSTON MARATHON 2023

Cliff Lentz

Bib: 999•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 11%
Masters (Masters Men)
#0 / 9891
Top 3%
Division (M55-59)
#0 / 1422
Top 0.5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:46
Rank: #771
Start → 5K
18:46 | 6:02/mi
10K· 6.21 mi
37:22
Rank: #766 (+5)
5K → 10K
18:36 | 5:59/mi
15K· 9.32 mi
56:10
Rank: #776 (-10)
10K → 15K
18:48 | 6:03/mi
20K· 12.43 mi
1:15:33
Rank: #851 (-75)
15K → 20K
19:23 | 6:14/mi
Half· 13.11 mi
1:19:47
Rank: #872 (-21)
20K → Half
4:14 | 6:12/mi
25K· 15.53 mi
1:35:27
Rank: #985 (-113)
Half → 25K
15:40 | 6:28/mi
30K· 18.64 mi
1:57:04
Rank: #1262 (-277)
25K → 30K
21:37 | 6:57/mi
20M
2:06:30
Rank: #1380 (-118)
30K → 20M
9:26 | 6:57/mi
21M
2:14:08
Rank: #1523 (-143)
20M → 21M
7:38 | 7:38/mi
35K· 21.75 mi
2:19:04
Rank: #1556 (-33)
21M → 35K
4:56 | 6:36/mi
23M
2:27:45
Rank: #1616 (-60)
35K → 23M
8:41 | 6:56/mi
24M
2:34:35
Rank: #1673 (-57)
23M → 24M
6:50 | 6:50/mi
40K· 24.85 mi
2:40:34
Rank: #1711 (-38)
24M → 40K
5:59 | 7:00/mi
25.2M
2:43:09
Rank: #1732 (-21)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
2:49:59
Rank: #1779 (-47)
25.2M → Finish
6:50 | 6:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:47
Pace6:05 /mi
2nd Half
Distance13.11 mi
Time1:30:12
Pace6:53 /mi
📊Positive Split: 13.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:5518:466:0218:46
6:02
-
10K
6.21 mi10:37:3137:226:0118:36
5:59
-0:03
15K
9.32 mi10:56:1956:106:0218:48
6:03
+0:04
20K
12.43 mi11:15:421:15:336:0519:23
6:14
+0:11
Half
13.11 mi11:19:561:19:476:054:14
6:12
-0:02
25K
15.53 mi11:35:361:35:276:0915:40
6:28
+0:16
30K
18.64 mi11:57:131:57:046:1721:37
6:57
+0:29
20M
20.00 mi12:06:392:06:306:199:26
6:57
0:00
21M
21.00 mi12:14:172:14:086:237:38
7:38
+0:41
35K
21.75 mi12:19:132:19:046:244:56
6:36
-1:02
23M
23.00 mi12:27:542:27:456:258:41
6:56
+0:20
24M
24.00 mi12:34:442:34:356:266:50
6:50
-0:06
40K
24.85 mi12:40:432:40:346:285:59
7:00
+0:10
25.2M
25.20 mi12:43:182:43:096:282:35
7:29
+0:29
Finish
26.22 mi12:50:082:49:596:296:50
6:42
-0:47

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

5:59 /mi

Average Pace

6:29 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:47

47% of race

Time at Steady Pace

42:57

25% of race

Time at Slower Pace

47:15

28% of race

Average Pace: 6:29 /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 mi10:18:5518:466:0218:46
6:02
#771
10K
6.21 mi10:37:3137:226:0118:36
5:59
#766
15K
9.32 mi10:56:1956:106:0218:48
6:03
#776
20K
12.43 mi11:15:421:15:336:0519:23
6:14
#851
Half
13.11 mi11:19:561:19:476:054:14
6:12
#872
25K
15.53 mi11:35:361:35:276:0915:40
6:28
#985
30K
18.64 mi11:57:131:57:046:1721:37
6:57
#1262
20M
20.00 mi12:06:392:06:306:199:26
6:57
#1380
21M
21.00 mi12:14:172:14:086:237:38
7:38
#1523
35K
21.75 mi12:19:132:19:046:244:56
6:36
#1556
23M
23.00 mi12:27:542:27:456:258:41
6:56
#1616
24M
24.00 mi12:34:442:34:356:266:50
6:50
#1673
40K
24.85 mi12:40:432:40:346:285:59
7:00
#1711
25.2M
25.20 mi12:43:182:43:096:282:35
7:29
#1732
Finish
26.22 mi12:50:082:49:596:296:50
6:42
#1779
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi771723723826(Top 3%)780(Top 5%)780(Top 55%)
10K6.21 mi3.10 mi766+5722+1722+1767(Top 3%)723(Top 5%)723(Top 51%)
15K9.32 mi3.11 mi776-10732-10732-10826(Top 3%)780(Top 5%)780(Top 55%)
20K12.43 mi3.11 mi851-75804-72804-721176(Top 4%)1123(Top 7%)1123(Top 79%)
Half13.11 mi0.68 mi872-21825-21825-211411(Top 5%)1351(Top 9%)1351(Top 95%)
25K15.53 mi2.42 mi985-113935-110935-1101994(Top 7%)1909(Top 13%)1909(Top 134%)
30K18.64 mi3.11 mi1262-2771206-2711206-2714048(Top 15%)3778(Top 25%)3778(Top 266%)
20M20.00 mi1.36 mi1380-1181318-1121318-1123633(Top 14%)3385(Top 22%)3385(Top 238%)
21M21.00 mi1.00 mi1523-1431455-1371455-1375233(Top 20%)4629(Top 31%)4629(Top 326%)
35K21.75 mi0.75 mi1556-331487-321487-322908(Top 11%)2719(Top 18%)2719(Top 191%)
23M23.00 mi1.25 mi1616-601546-591546-593408(Top 13%)3156(Top 21%)3156(Top 222%)
24M24.00 mi1.00 mi1673-571600-541600-543793(Top 14%)3465(Top 23%)3465(Top 244%)
40K24.85 mi0.85 mi1711-381636-361636-363795(Top 14%)3412(Top 22%)3412(Top 240%)
25.2M25.20 mi0.35 mi1732-211655-191655-193752(Top 14%)3342(Top 22%)3342(Top 235%)
Finish26.22 mi1.02 mi1779-471700-451700-453513(Top 13%)3138(Top 21%)3138(Top 221%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

826

Males

780

M55-59

780

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

767

Males

723

M55-59

723

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

826

Males

780

M55-59

780

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1176

Males

1123

M55-59

1123

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1411

Males

1351

M55-59

1351

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1994

Males

1909

M55-59

1909

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4048

Males

3778

M55-59

3778

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3633

Males

3385

M55-59

3385

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5233

Males

4629

M55-59

4629

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

2908

Males

2719

M55-59

2719

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3408

Males

3156

M55-59

3156

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3793

Males

3465

M55-59

3465

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3795

Males

3412

M55-59

3412

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3752

Males

3342

M55-59

3342

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3513

Males

3138

M55-59

3138

Passing Analysis

Category:
Athletes Passed
150
Passed By
1158
Net Change
-1008
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#771
5K → 10K4237+5#771#766
10K → 15K1222-10#766#776
15K → 20K1287-75#776#851
20K → Half021-21#851#872
Half → 25K7120-113#872#985
25K → 30K4281-277#985#1262
30K → 20M5123-118#1262#1380
20M → 21M3146-143#1380#1523
21M → 35K538-33#1523#1556
35K → 23M1070-60#1556#1616
23M → 24M1269-57#1616#1673
24M → 40K1654-38#1673#1711
40K → 25.2M526-21#1711#1732
25.2M → Finish1764-47#1732#1779
TOTALS1501158-1008
📊

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