Boston Marathon logo
BOSTON MARATHON 2023

Ronald Reynolds

Bib: 15424•M

NC

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
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
7:09/mi
22:14
↑ 97↓ 3451.5%
10K· 6.21 mi
7:19/mi
44:57
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:07:49
↑ 67↓ 78
20K· 12.43 mi
7:42/mi
1:31:43
↑ 106↓ 860.1%
Half· 13.11 mi
7:45/mi
1:37:00
↑ 19↓ 370.5%
25K· 15.53 mi
8:29/mi
1:57:35
↑ 66↓ 880.2%
30K· 18.64 mi
9:00/mi
2:25:34
↑ 181↓ 1480.2%
20M
9:19/mi
2:38:13
↑ 64↓ 500.2%
21M
11:43/mi
2:49:56
↑ 106↓ 241.6%
35K· 21.75 mi
9:13/mi
2:56:50
↑ 17↓ 861.7%
23M
10:06/mi
3:09:29
↑ 23↓ 630.6%
24M
9:26/mi
3:18:55
↓ 821.3%
40K· 24.85 mi
9:55/mi
3:27:24
↓ 200.3%
25.2M
10:12/mi
3:30:55
↑ 13↓ 160.2%
Finish· 26.22 mi
9:14/mi
3:40:20
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:00
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time2:03:20
Pace9:24 /mi
📊Positive Split: 27.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1322:147:0922:14
7:09
-
10K
6.21 mi11:14:5644:577:1422:43
7:19
+0:10
15K
9.32 mi11:37:481:07:497:1722:52
7:22
+0:03
20K
12.43 mi12:01:421:31:437:2323:54
7:42
+0:20
Half
13.11 mi12:06:591:37:007:245:17
7:45
+0:03
25K
15.53 mi12:27:341:57:357:3420:35
8:29
+0:44
30K
18.64 mi12:55:332:25:347:4927:59
9:00
+0:31
20M
20.00 mi13:08:122:38:137:5512:39
9:19
+0:19
21M
21.00 mi13:19:552:49:568:0611:43
11:43
+2:24
35K
21.75 mi13:26:492:56:508:086:54
9:13
-2:30
23M
23.00 mi13:39:283:09:298:1412:39
10:06
+0:53
24M
24.00 mi13:48:543:18:558:179:26
9:26
-0:40
40K
24.85 mi13:57:233:27:248:218:29
9:55
+0:29
25.2M
25.20 mi14:00:543:30:558:223:31
10:12
+0:17
Finish
26.22 mi14:10:193:40:208:259:25
9:14
-0:58

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

7:09 /mi

Average Pace

8:25 /mi

Slowest Pace

11:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:35

53% of race

Time at Steady Pace

1:06:23

30% of race

Time at Slower Pace

36:22

17% of race

Average Pace: 8:24 /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 mi10:52:1322:147:0922:14
7:09
#7239
10K
6.21 mi11:14:5644:577:1422:43
7:19
#8002
15K
9.32 mi11:37:481:07:497:1722:52
7:22
#8279
20K
12.43 mi12:01:421:31:437:2323:54
7:42
#8853
Half
13.11 mi12:06:591:37:007:245:17
7:45
#9019
25K
15.53 mi12:27:341:57:357:3420:35
8:29
#10223
30K
18.64 mi12:55:332:25:347:4927:59
9:00
#11701
20M
20.00 mi13:08:122:38:137:5512:39
9:19
#12304
21M
21.00 mi13:19:552:49:568:0611:43
11:43
#13387
35K
21.75 mi13:26:492:56:508:086:54
9:13
#13662
23M
23.00 mi13:39:283:09:298:1412:39
10:06
#14238
24M
24.00 mi13:48:543:18:558:179:26
9:26
#14502
40K
24.85 mi13:57:233:27:248:218:29
9:55
#14743
25.2M
25.20 mi14:00:543:30:558:223:31
10:12
#14803
Finish
26.22 mi14:10:193:40:208:259:25
9:14
#15019
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi7239644864489039(Top 34%)7556(Top 50%)7556(Top 531%)
10K6.21 mi3.10 mi8002-7636961-5136961-5138947(Top 34%)7543(Top 50%)7543(Top 530%)
15K9.32 mi3.11 mi8279-2777133-1727133-1729039(Top 34%)7556(Top 50%)7556(Top 531%)
20K12.43 mi3.11 mi8853-5747466-3337466-33310882(Top 41%)8509(Top 56%)8509(Top 598%)
Half13.11 mi0.68 mi9019-1667555-897555-8912353(Top 46%)9193(Top 61%)9193(Top 646%)
25K15.53 mi2.42 mi10223-12048246-6918246-69116150(Top 61%)10598(Top 70%)10598(Top 745%)
30K18.64 mi3.11 mi11701-14788875-6298875-62917221(Top 65%)10997(Top 72%)10997(Top 773%)
20M20.00 mi1.36 mi12304-6039124-2499124-24918089(Top 68%)11274(Top 74%)11274(Top 793%)
21M21.00 mi1.00 mi13387-10839562-4389562-43822276(Top 84%)13099(Top 86%)13099(Top 921%)
35K21.75 mi0.75 mi13662-2759661-999661-9918887(Top 71%)11525(Top 76%)11525(Top 810%)
23M23.00 mi1.25 mi14238-5769848-1879848-18720316(Top 76%)12149(Top 80%)12149(Top 854%)
24M24.00 mi1.00 mi14502-2649930-829930-8219006(Top 71%)11527(Top 76%)11527(Top 811%)
40K24.85 mi0.85 mi14743-2419997-679997-6719783(Top 74%)11815(Top 78%)11815(Top 831%)
25.2M25.20 mi0.35 mi14803-6010008-1110008-1118200(Top 68%)11100(Top 73%)11100(Top 781%)
Finish26.22 mi1.02 mi15019-21610080-7210080-7219156(Top 72%)11603(Top 76%)11603(Top 816%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

9039

Males

7556

M55-59

7556

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

8947

Males

7543

M55-59

7543

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

9039

Males

7556

M55-59

7556

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

10882

Males

8509

M55-59

8509

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12353

Males

9193

M55-59

9193

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

16150

Males

10598

M55-59

10598

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

17221

Males

10997

M55-59

10997

30K→20M

18.6 - 20.0 mi

Top 68%
×5story building
+64ft-50ft

Overall

18089

Males

11274

M55-59

11274

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

22276

Males

13099

M55-59

13099

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

18887

Males

11525

M55-59

11525

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

20316

Males

12149

M55-59

12149

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

19006

Males

11527

M55-59

11527

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19783

Males

11815

M55-59

11815

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18200

Males

11100

M55-59

11100

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

19156

Males

11603

M55-59

11603

Passing Analysis

Category:
Athletes Passed
282
Passed By
8060
Net Change
-7780
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7239
5K → 10K46809-763#7239#8002
10K → 15K65342-277#8002#8279
15K → 20K28602-574#8279#8853
20K → Half2168-166#8853#9019
Half → 25K111213-1204#9019#10223
25K → 30K151493-1478#10223#11701
30K → 20M15618-603#11701#12304
20M → 21M31086-1083#12304#13387
21M → 35K15290-275#13387#13662
35K → 23M9585-576#13662#14238
23M → 24M23287-264#14238#14502
24M → 40K20261-241#14502#14743
40K → 25.2M1474-60#14743#14803
25.2M → Finish16232-216#14803#15019
TOTALS2828060-7780
📊

Passing Visuals

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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing