Boston Marathon logo
BOSTON MARATHON 2023

Jeffrey Olichwier

Bib: 13431•M

NM

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 42%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 46%
Division (M50-54)
#0 / 2052
Top 48%
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
7:47/mi
24:10
↑ 97↓ 3451.5%
10K· 6.21 mi
7:32/mi
47:34
↑ 79↓ 1380.4%
15K· 9.32 mi
7:32/mi
1:10:57
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:34:55
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:40:01
↑ 19↓ 370.5%
25K· 15.53 mi
7:47/mi
1:58:53
↑ 66↓ 880.2%
30K· 18.64 mi
7:55/mi
2:23:30
↑ 181↓ 1480.2%
20M
8:06/mi
2:34:31
↑ 64↓ 500.2%
21M
8:34/mi
2:43:05
↑ 106↓ 241.6%
35K· 21.75 mi
7:52/mi
2:48:58
↑ 17↓ 861.7%
23M
8:18/mi
2:59:21
↑ 23↓ 630.6%
24M
8:14/mi
3:07:35
↓ 821.3%
40K· 24.85 mi
8:31/mi
3:14:52
↓ 200.3%
25.2M
9:05/mi
3:18:00
↑ 13↓ 160.2%
Finish· 26.22 mi
8:19/mi
3:26:28
↑ 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
Time1:40:01
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:46:27
Pace8:07 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2924:107:4724:10
7:47
-
10K
6.21 mi11:15:5347:347:3923:24
7:32
-0:15
15K
9.32 mi11:39:161:10:577:3723:23
7:32
0:00
20K
12.43 mi12:03:141:34:557:3823:58
7:43
+0:11
Half
13.11 mi12:08:201:40:017:385:06
7:29
-0:14
25K
15.53 mi12:27:121:58:537:3918:52
7:47
+0:18
30K
18.64 mi12:51:492:23:307:4224:37
7:55
+0:08
20M
20.00 mi13:02:502:34:317:4411:01
8:06
+0:11
21M
21.00 mi13:11:242:43:057:468:34
8:34
+0:28
35K
21.75 mi13:17:172:48:587:465:53
7:52
-0:42
23M
23.00 mi13:27:402:59:217:4810:23
8:18
+0:26
24M
24.00 mi13:35:543:07:357:498:14
8:14
-0:04
40K
24.85 mi13:43:113:14:527:507:17
8:31
+0:17
25.2M
25.20 mi13:46:193:18:007:513:08
9:05
+0:34
Finish
26.22 mi13:54:473:26:287:538:28
8:19
-0:46

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

7:29 /mi

Average Pace

7:53 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

51:53

25% of race

Time at Steady Pace

1:48:31

53% of race

Time at Slower Pace

46:04

22% of race

Average Pace: 7:52 /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 mi10:52:2924:107:4724:10
7:47
#12143
10K
6.21 mi11:15:5347:347:3923:24
7:32
#11385
15K
9.32 mi11:39:161:10:577:3723:23
7:32
#11026
20K
12.43 mi12:03:141:34:557:3823:58
7:43
#11011
Half
13.11 mi12:08:201:40:017:385:06
7:29
#10964
25K
15.53 mi12:27:121:58:537:3918:52
7:47
#10928
30K
18.64 mi12:51:492:23:307:4224:37
7:55
#10760
20M
20.00 mi13:02:502:34:317:4411:01
8:06
#10744
21M
21.00 mi13:11:242:43:057:468:34
8:34
#10743
35K
21.75 mi13:17:172:48:587:465:53
7:52
#10735
23M
23.00 mi13:27:402:59:217:4810:23
8:18
#10788
24M
24.00 mi13:35:543:07:357:498:14
8:14
#10863
40K
24.85 mi13:43:113:14:527:507:17
8:31
#10962
25.2M
25.20 mi13:46:193:18:007:513:08
9:05
#10983
Finish
26.22 mi13:54:473:26:287:538:28
8:19
#11121
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi121439175917510382(Top 39%)8350(Top 55%)8350(Top 407%)
10K6.21 mi3.10 mi11385+7588832+3438832+34310705(Top 40%)8533(Top 56%)8533(Top 416%)
15K9.32 mi3.11 mi11026+3598666+1668666+16610382(Top 39%)8350(Top 55%)8350(Top 407%)
20K12.43 mi3.11 mi11011+158661+58661+511026(Top 41%)8591(Top 57%)8591(Top 419%)
Half13.11 mi0.68 mi10964+478634+278634+2710016(Top 38%)8126(Top 54%)8126(Top 396%)
25K15.53 mi2.42 mi10928+368598+368598+3610938(Top 41%)8472(Top 56%)8472(Top 413%)
30K18.64 mi3.11 mi10760+1688465+1338465+13310315(Top 39%)7993(Top 53%)7993(Top 390%)
20M20.00 mi1.36 mi10744+168424+418424+4111056(Top 42%)8277(Top 55%)8277(Top 403%)
21M21.00 mi1.00 mi10743+18406+188406+1810853(Top 41%)8050(Top 53%)8050(Top 392%)
35K21.75 mi0.75 mi10735+88375+318375+3111083(Top 42%)8152(Top 54%)8152(Top 397%)
23M23.00 mi1.25 mi10788-538372+38372+311816(Top 44%)8381(Top 55%)8381(Top 408%)
24M24.00 mi1.00 mi10863-758389-178389-1712798(Top 48%)8756(Top 58%)8756(Top 427%)
40K24.85 mi0.85 mi10962-998414-258414-2513435(Top 50%)8974(Top 59%)8974(Top 437%)
25.2M25.20 mi0.35 mi10983-218410+48410+412947(Top 49%)8727(Top 58%)8727(Top 425%)
Finish26.22 mi1.02 mi11121-1388454-448454-4414132(Top 53%)9298(Top 61%)9298(Top 453%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

10382

Males

8350

M50-54

8350

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

10705

Males

8533

M50-54

8533

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

10382

Males

8350

M50-54

8350

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11026

Males

8591

M50-54

8591

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10016

Males

8126

M50-54

8126

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10938

Males

8472

M50-54

8472

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10315

Males

7993

M50-54

7993

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

11056

Males

8277

M50-54

8277

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

10853

Males

8050

M50-54

8050

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

11083

Males

8152

M50-54

8152

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

11816

Males

8381

M50-54

8381

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

12798

Males

8756

M50-54

8756

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13435

Males

8974

M50-54

8974

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

12947

Males

8727

M50-54

8727

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

14132

Males

9298

M50-54

9298

Passing Analysis

Category:
Athletes Passed
2305*
Passed By
1283
Net Change
+1022
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12143
5K → 10K83981+758#12143#11385
10K → 15K41657+359#11385#11026
15K → 20K164149+15#11026#11011
20K → Half514+47#11011#10964
Half → 25K141105+36#10964#10928
25K → 30K26799+168#10928#10760
30K → 20M82*66+16#10760#10744
20M → 21M7170+1#10744#10743
21M → 35K6052+8#10743#10735
35K → 23M65118-53#10735#10788
23M → 24M47122-75#10788#10863
24M → 40K36135-99#10863#10962
40K → 25.2M3152-21#10962#10983
25.2M → Finish35173-138#10983#11121
TOTALS2305*1283+1022

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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