Capital Road Race Management
Boston Marathon logo
BOSTON MARATHON 2023

Cliff Lentz

CA

Bib: 999 M

0:00
0:00
/ mi
Masters
Be the first to cheer!
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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:02/mi
18:46
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
5:59/mi
37:22
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:03/mi
56:10
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:14/mi
1:15:33
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:12/mi
1:19:47
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:28/mi
1:35:27
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:57/mi
1:57:04
↑ 181↓ 1480.2%
138 ft elev
20M
6:57/mi
2:06:30
↑ 64↓ 500.2%
148 ft elev
21M
7:38/mi
2:14:08
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:36/mi
2:19:04
↑ 17↓ 861.7%
156 ft elev
23M
6:56/mi
2:27:45
↑ 23↓ 630.6%
116 ft elev
24M
6:50/mi
2:34:35
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:00/mi
2:40:34
↓ 200.3%
20 ft elev
25.2M
7:29/mi
2:43:09
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:42/mi
2:49:59
↑ 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
1:19:476:05 /mi⚡ faster
2nd Half
1:30:126:53 /mi+13.1%
Positive split — 13.1% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

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 mi771723723826780780
10K6.21 mi3.10 mi766+5722+1722+1767723723
15K9.32 mi3.11 mi776-10732-10732-10826780780
20K12.43 mi3.11 mi851-75804-72804-72117611231123
Half13.11 mi0.68 mi872-21825-21825-21141113511351
25K15.53 mi2.42 mi985-113935-110935-110199419091909
30K18.64 mi3.11 mi1262-2771206-2711206-271404837783778
20M20.00 mi1.36 mi1380-1181318-1121318-112363333853385
21M21.00 mi1.00 mi1523-1431455-1371455-137523346294629
35K21.75 mi0.75 mi1556-331487-321487-32290827192719
23M23.00 mi1.25 mi1616-601546-591546-59340831563156
24M24.00 mi1.00 mi1673-571600-541600-54379334653465
40K24.85 mi0.85 mi1711-381636-361636-36379534123412
25.2M25.20 mi0.35 mi1732-211655-191655-19375233423342
Finish26.22 mi1.02 mi1779-471700-451700-45351331383138

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21story building
+97ft-345ft

Overall

826

Males

780

M55-59

780

5K→10K

3.1 - 6.2 mi

Top 3%
×5story building
+79ft-138ft

Overall

767

Males

723

M55-59

723

10K→15K

6.2 - 9.3 mi

Top 3%
×3story building
+67ft-78ft

Overall

826

Males

780

M55-59

780

15K→20K

9.3 - 12.4 mi

Top 4%
×5story building
+106ft-86ft

Overall

1176

Males

1123

M55-59

1123

20K→Half

12.4 - 13.1 mi

Top 5%
×2story building
+19ft-37ft

Overall

1411

Males

1351

M55-59

1351

Half→25K

13.1 - 15.5 mi

Top 7%
×4story building
+66ft-88ft

Overall

1994

Males

1909

M55-59

1909

25K→30K

15.5 - 18.6 mi

Top 15%
×9story building
+181ft-148ft

Overall

4048

Males

3778

M55-59

3778

30K→20M

18.6 - 20.0 mi

Top 14%
×5story building
+64ft-50ft

Overall

3633

Males

3385

M55-59

3385

20M→21M

20.0 - 21.0 mi

Top 20%
×8story building
+106ft-24ft

Overall

5233

Males

4629

M55-59

4629

21M→35K

21.0 - 21.8 mi

Top 11%
×7story building
+17ft-86ft

Overall

2908

Males

2719

M55-59

2719

35K→23M

21.8 - 23.0 mi

Top 13%
×5story building
+23ft-63ft

Overall

3408

Males

3156

M55-59

3156

23M→24M

23.0 - 24.0 mi

Top 14%
×6story building
+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%
×2story building
+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 Charts

Category:
Loading...

Passing Circle

Loading...

Position Flow

Loading...

Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support