Boston Marathon logo
BOSTON MARATHON 2023

Jeff Russo

Bib: 31511•M

NJ

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
9:13/mi
28:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:39/mi
55:28
↑ 79↓ 1380.4%
15K· 9.32 mi
8:43/mi
1:22:32
↑ 67↓ 78
20K· 12.43 mi
8:39/mi
1:49:26
↑ 106↓ 860.1%
Half· 13.11 mi
8:40/mi
1:55:21
↑ 19↓ 370.5%
25K· 15.53 mi
8:41/mi
2:16:25
↑ 66↓ 880.2%
30K· 18.64 mi
8:47/mi
2:43:42
↑ 181↓ 1480.2%
20M
8:45/mi
2:55:35
↑ 64↓ 500.2%
21M
9:25/mi
3:05:00
↑ 106↓ 241.6%
35K· 21.75 mi
8:11/mi
3:11:07
↑ 17↓ 861.7%
23M
8:26/mi
3:21:41
↑ 23↓ 630.6%
24M
8:12/mi
3:29:53
↓ 821.3%
40K· 24.85 mi
8:30/mi
3:37:09
↓ 200.3%
25.2M
9:05/mi
3:40:17
↑ 13↓ 160.2%
Finish· 26.22 mi
8:21/mi
3:48:48
↑ 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 Half
Distance13.11 mi
Time1:55:21
Pace8:48 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:53:27
Pace8:39 /mi
📊Negative Split: 1.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:2728:379:1328:37
9:13
-
10K
6.21 mi12:15:1855:288:5626:51
8:39
-0:34
15K
9.32 mi12:42:221:22:328:5127:04
8:43
+0:04
20K
12.43 mi13:09:161:49:268:4826:54
8:39
-0:04
Half
13.11 mi13:15:111:55:218:485:55
8:40
+0:01
25K
15.53 mi13:36:152:16:258:4721:04
8:41
+0:01
30K
18.64 mi14:03:322:43:428:4727:17
8:47
+0:06
20M
20.00 mi14:15:252:55:358:4711:53
8:45
-0:02
21M
21.00 mi14:24:503:05:008:499:25
9:25
+0:40
35K
21.75 mi14:30:573:11:078:476:07
8:11
-1:14
23M
23.00 mi14:41:313:21:418:4610:34
8:26
+0:15
24M
24.00 mi14:49:433:29:538:458:12
8:12
-0:14
40K
24.85 mi14:56:593:37:098:447:16
8:30
+0:18
25.2M
25.20 mi15:00:073:40:178:443:08
9:05
+0:35
Finish
26.22 mi15:08:383:48:488:448:31
8:21
-0:44

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

8:11 /mi

Average Pace

8:44 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:38

82% of race

Time at Steady Pace

41:10

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:44 /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 mi11:48:2728:379:1328:37
9:13
#21228
10K
6.21 mi12:15:1855:288:5626:51
8:39
#20328
15K
9.32 mi12:42:221:22:328:5127:04
8:43
#19887
20K
12.43 mi13:09:161:49:268:4826:54
8:39
#19344
Half
13.11 mi13:15:111:55:218:485:55
8:40
#19312
25K
15.53 mi13:36:152:16:258:4721:04
8:41
#18998
30K
18.64 mi14:03:322:43:428:4727:17
8:47
#18468
20M
20.00 mi14:15:252:55:358:4711:53
8:45
#18200
21M
21.00 mi14:24:503:05:008:499:25
9:25
#18017
35K
21.75 mi14:30:573:11:078:476:07
8:11
#17874
23M
23.00 mi14:41:313:21:418:4610:34
8:26
#17564
24M
24.00 mi14:49:433:29:538:458:12
8:12
#17368
40K
24.85 mi14:56:593:37:098:447:16
8:30
#17208
25.2M
25.20 mi15:00:073:40:178:443:08
9:05
#17154
Finish
26.22 mi15:08:383:48:488:448:31
8:21
#17049
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi21228127191271919033(Top 71%)11886(Top 78%)11886(Top 836%)
10K6.21 mi3.10 mi20328+90012371+34812371+34819079(Top 72%)11926(Top 79%)11926(Top 839%)
15K9.32 mi3.11 mi19887+44112193+17812193+17819033(Top 71%)11886(Top 78%)11886(Top 836%)
20K12.43 mi3.11 mi19344+54311987+20611987+20617842(Top 67%)11399(Top 75%)11399(Top 802%)
Half13.11 mi0.68 mi19312+3211979+811979+818725(Top 70%)11780(Top 78%)11780(Top 828%)
25K15.53 mi2.42 mi18998+31411857+12211857+12217304(Top 65%)11109(Top 73%)11109(Top 781%)
30K18.64 mi3.11 mi18468+53011599+25811599+25815936(Top 60%)10454(Top 69%)10454(Top 735%)
20M20.00 mi1.36 mi18200+26811482+11711482+11715125(Top 57%)10041(Top 66%)10041(Top 706%)
21M21.00 mi1.00 mi18017+18311395+8711395+8715552(Top 58%)10161(Top 67%)10161(Top 715%)
35K21.75 mi0.75 mi17874+14311328+6711328+6713274(Top 50%)9115(Top 60%)9115(Top 641%)
23M23.00 mi1.25 mi17564+31011183+14511183+14512851(Top 48%)8857(Top 58%)8857(Top 623%)
24M24.00 mi1.00 mi17368+19611098+8511098+8512590(Top 47%)8680(Top 57%)8680(Top 610%)
40K24.85 mi0.85 mi17208+16011012+8611012+8613322(Top 50%)8940(Top 59%)8940(Top 629%)
25.2M25.20 mi0.35 mi17154+5410983+2910983+2912992(Top 49%)8772(Top 58%)8772(Top 617%)
Finish26.22 mi1.02 mi17049+10510925+5810925+5814445(Top 54%)9465(Top 62%)9465(Top 666%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

19033

Males

11886

M55-59

11886

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

19079

Males

11926

M55-59

11926

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

19033

Males

11886

M55-59

11886

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17842

Males

11399

M55-59

11399

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

18725

Males

11780

M55-59

11780

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

17304

Males

11109

M55-59

11109

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

15936

Males

10454

M55-59

10454

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

15125

Males

10041

M55-59

10041

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

15552

Males

10161

M55-59

10161

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

13274

Males

9115

M55-59

9115

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

12851

Males

8857

M55-59

8857

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12590

Males

8680

M55-59

8680

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13322

Males

8940

M55-59

8940

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

12992

Males

8772

M55-59

8772

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14445

Males

9465

M55-59

9465

Passing Analysis

Category:
Athletes Passed
4396
Passed By
217
Net Change
+4179
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21228
5K → 10K95454+900#21228#20328
10K → 15K49857+441#20328#19887
15K → 20K55310+543#19887#19344
20K → Half4513+32#19344#19312
Half → 25K32511+314#19312#18998
25K → 30K54111+530#18998#18468
30K → 20M2724+268#18468#18200
20M → 21M19916+183#18200#18017
21M → 35K1463+143#18017#17874
35K → 23M3144+310#17874#17564
23M → 24M1982+196#17564#17368
24M → 40K1699+160#17368#17208
40K → 25.2M573+54#17208#17154
25.2M → Finish12520+105#17154#17049
TOTALS4396217+4179
📊

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