Boston Marathon logo
BOSTON MARATHON 2023

Jeffrey Zobrist

Bib: 22717•M

WA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Top 45%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:25
Rank: #17574
Start → 5K
8:30/mi
26:25 split
10K· 6.21 mi
52:29
Rank: #17511 (+63)
5K → 10K
8:23/mi
26:04 split
15K· 9.32 mi
1:18:16
Rank: #17178 (+333)
10K → 15K
8:18/mi
25:47 split
20K· 12.43 mi
1:44:34
Rank: #17034 (+144)
15K → 20K
8:28/mi
26:18 split
Half· 13.11 mi
1:50:18
Rank: #17037 (-3)
20K → Half
8:24/mi
5:44 split
25K· 15.53 mi
2:11:05
Rank: #16966 (+71)
Half → 25K
8:34/mi
20:47 split
30K· 18.64 mi
2:38:33
Rank: #16813 (+153)
25K → 30K
8:50/mi
27:28 split
20M
2:50:40
Rank: #16737 (+76)
30K → 20M
8:55/mi
12:07 split
21M
3:00:08
Rank: #16682 (+55)
20M → 21M
9:28/mi
9:28 split
35K· 21.75 mi
3:06:37
Rank: #16645 (+37)
21M → 35K
8:40/mi
6:29 split
23M
3:17:46
Rank: #16580 (+65)
35K → 23M
8:54/mi
11:09 split
24M
3:26:41
Rank: #16580
23M → 24M
8:55/mi
8:55 split
40K· 24.85 mi
3:35:06
Rank: #16731 (-151)
24M → 40K
9:51/mi
8:25 split
25.2M
3:38:44
Rank: #16774 (-43)
40K → 25.2M
10:32/mi
3:38 split
Finish· 26.22 mi
3:47:39
Rank: #16784 (-10)
25.2M → Finish
8:45/mi
8:55 split

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
Time1:50:18
Pace8:25 /mi
2nd Half
Distance13.11 mi
Time1:57:21
Pace8:57 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3526:258:3026:25
8:30
-
10K
6.21 mi11:46:3952:298:2726:04
8:23
-0:07
15K
9.32 mi12:12:261:18:168:2425:47
8:18
-0:05
20K
12.43 mi12:38:441:44:348:2526:18
8:28
+0:10
Half
13.11 mi12:44:281:50:188:255:44
8:24
-0:04
25K
15.53 mi13:05:152:11:058:2620:47
8:34
+0:10
30K
18.64 mi13:32:432:38:338:3027:28
8:50
+0:16
20M
20.00 mi13:44:502:50:408:3212:07
8:55
+0:05
21M
21.00 mi13:54:183:00:088:359:28
9:28
+0:33
35K
21.75 mi14:00:473:06:378:356:29
8:40
-0:48
23M
23.00 mi14:11:563:17:468:3611:09
8:54
+0:14
24M
24.00 mi14:20:513:26:418:378:55
8:55
+0:01
40K
24.85 mi14:29:163:35:068:398:25
9:51
+0:56
25.2M
25.20 mi14:32:543:38:448:413:38
10:32
+0:41
Finish
26.22 mi14:41:493:47:398:418:55
8:45
-1:47

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

8:18 /mi

Average Pace

8:41 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

57:35

25% of race

Time at Steady Pace

2:28:33

65% of race

Time at Slower Pace

21:31

9% of race

Average Pace: 8:41 /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 mi11:20:3526:258:3026:25
8:30
#17574
10K
6.21 mi11:46:3952:298:2726:04
8:23
#17511
15K
9.32 mi12:12:261:18:168:2425:47
8:18
#17178
20K
12.43 mi12:38:441:44:348:2526:18
8:28
#17034
Half
13.11 mi12:44:281:50:188:255:44
8:24
#17037
25K
15.53 mi13:05:152:11:058:2620:47
8:34
#16966
30K
18.64 mi13:32:432:38:338:3027:28
8:50
#16813
20M
20.00 mi13:44:502:50:408:3212:07
8:55
#16737
21M
21.00 mi13:54:183:00:088:359:28
9:28
#16682
35K
21.75 mi14:00:473:06:378:356:29
8:40
#16645
23M
23.00 mi14:11:563:17:468:3611:09
8:54
#16580
24M
24.00 mi14:20:513:26:418:378:55
8:55
#16580
40K
24.85 mi14:29:163:35:068:398:25
9:51
#16731
25.2M
25.20 mi14:32:543:38:448:413:38
10:32
#16774
Finish
26.22 mi14:41:493:47:398:418:55
8:45
#16784
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi17574112541125416517(Top 62%)10896(Top 72%)10896(Top 982%)
10K6.21 mi3.10 mi17511+6311260-611260-617509(Top 66%)11301(Top 74%)11301(Top 1018%)
15K9.32 mi3.11 mi17178+33311140+12011140+12016517(Top 62%)10896(Top 72%)10896(Top 982%)
20K12.43 mi3.11 mi17034+14411066+7411066+7416616(Top 62%)10882(Top 72%)10882(Top 980%)
Half13.11 mi0.68 mi17037-311063+311063+317111(Top 64%)11120(Top 73%)11120(Top 1002%)
25K15.53 mi2.42 mi16966+7111021+4211021+4216632(Top 62%)10819(Top 71%)10819(Top 975%)
30K18.64 mi3.11 mi16813+15310939+8210939+8216309(Top 61%)10615(Top 70%)10615(Top 956%)
20M20.00 mi1.36 mi16737+7610886+5310886+5316078(Top 60%)10444(Top 69%)10444(Top 941%)
21M21.00 mi1.00 mi16682+5510852+3410852+3415791(Top 59%)10265(Top 68%)10265(Top 925%)
35K21.75 mi0.75 mi16645+3710827+2510827+2516211(Top 61%)10373(Top 68%)10373(Top 935%)
23M23.00 mi1.25 mi16580+6510781+4610781+4615555(Top 58%)10057(Top 66%)10057(Top 906%)
24M24.00 mi1.00 mi1658010766+1510766+1516826(Top 63%)10548(Top 70%)10548(Top 950%)
40K24.85 mi0.85 mi16731-15110814-4810814-4819505(Top 73%)11705(Top 77%)11705(Top 1055%)
25.2M25.20 mi0.35 mi16774-4310819-510819-519169(Top 72%)11541(Top 76%)11541(Top 1040%)
Finish26.22 mi1.02 mi16784-1010811+810811+816747(Top 63%)10503(Top 69%)10503(Top 946%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

16517

Males

10896

M60-64

10896

5K→10K

3.1 - 6.2 mi

Top 66%
×5story building
+79ft-138ft

Overall

17509

Males

11301

M60-64

11301

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

16517

Males

10896

M60-64

10896

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

16616

Males

10882

M60-64

10882

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

17111

Males

11120

M60-64

11120

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

16632

Males

10819

M60-64

10819

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

16309

Males

10615

M60-64

10615

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

16078

Males

10444

M60-64

10444

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15791

Males

10265

M60-64

10265

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

16211

Males

10373

M60-64

10373

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

15555

Males

10057

M60-64

10057

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16826

Males

10548

M60-64

10548

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19505

Males

11705

M60-64

11705

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19169

Males

11541

M60-64

11541

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

16747

Males

10503

M60-64

10503

Passing Analysis

Category:
Athletes Passed
2000
Passed By
1210
Net Change
+790
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17574
5K → 10K349286+63#17574#17511
10K → 15K40269+333#17511#17178
15K → 20K253109+144#17178#17034
20K → Half2831-3#17034#17037
Half → 25K14574+71#17037#16966
25K → 30K24087+153#16966#16813
30K → 20M12246+76#16813#16737
20M → 21M11156+55#16737#16682
21M → 35K6932+37#16682#16645
35K → 23M10641+65#16645#16580
23M → 24M71710#16580#16580
24M → 40K20171-151#16580#16731
40K → 25.2M1962-43#16731#16774
25.2M → Finish6575-10#16774#16784
TOTALS20001210+790
📊

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing