Boston Marathon logo
BOSTON MARATHON 2023

Jeremy Frantz

Bib: 11598•M

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 31%
Gender (Male)
#0 / 15176
Top 45%
Masters (Masters Men)
#0 / 9891
Top 32%
Division (M45-49)
#0 / 2252
Top 44%
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
6:47/mi
21:04
↑ 97↓ 3451.5%
10K· 6.21 mi
6:31/mi
41:19
↑ 79↓ 1380.4%
15K· 9.32 mi
6:42/mi
1:02:08
↑ 67↓ 78
20K· 12.43 mi
7:09/mi
1:24:21
↑ 106↓ 860.1%
Half· 13.11 mi
6:49/mi
1:29:00
↑ 19↓ 370.5%
25K· 15.53 mi
7:35/mi
1:47:24
↑ 66↓ 880.2%
30K· 18.64 mi
7:34/mi
2:10:56
↑ 181↓ 1480.2%
20M
8:39/mi
2:22:41
↑ 64↓ 500.2%
21M
8:53/mi
2:31:34
↑ 106↓ 241.6%
35K· 21.75 mi
8:32/mi
2:37:57
↑ 17↓ 861.7%
23M
9:28/mi
2:49:48
↑ 23↓ 630.6%
24M
8:04/mi
2:57:52
↓ 821.3%
40K· 24.85 mi
8:25/mi
3:05:04
↓ 200.3%
25.2M
9:11/mi
3:08:14
↑ 13↓ 160.2%
Finish· 26.22 mi
7:59/mi
3:16:22
↑ 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
Time1:29:00
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time1:47:22
Pace8:11 /mi
📊Positive Split: 20.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0621:046:4721:04
6:47
-
10K
6.21 mi11:08:2141:196:3920:15
6:31
-0:16
15K
9.32 mi11:29:101:02:086:4020:49
6:42
+0:11
20K
12.43 mi11:51:231:24:216:4722:13
7:09
+0:27
Half
13.11 mi11:56:021:29:006:474:39
6:49
-0:20
25K
15.53 mi12:14:261:47:246:5518:24
7:35
+0:46
30K
18.64 mi12:37:582:10:567:0123:32
7:34
-0:01
20M
20.00 mi12:49:432:22:417:0811:45
8:39
+1:05
21M
21.00 mi12:58:362:31:347:138:53
8:53
+0:14
35K
21.75 mi13:04:592:37:577:166:23
8:32
-0:21
23M
23.00 mi13:16:502:49:487:2311:51
9:28
+0:56
24M
24.00 mi13:24:542:57:527:258:04
8:04
-1:24
40K
24.85 mi13:32:063:05:047:277:12
8:25
+0:21
25.2M
25.20 mi13:35:163:08:147:283:10
9:11
+0:46
Finish
26.22 mi13:43:243:16:227:308:08
7:59
-1:12

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

6:31 /mi

Average Pace

7:30 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:00

45% of race

Time at Steady Pace

1:05:20

33% of race

Time at Slower Pace

42:02

21% of race

Average Pace: 7:29 /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 mi10:48:0621:046:4721:04
6:47
#4511
10K
6.21 mi11:08:2141:196:3920:15
6:31
#3536
15K
9.32 mi11:29:101:02:086:4020:49
6:42
#3685
20K
12.43 mi11:51:231:24:216:4722:13
7:09
#4716
Half
13.11 mi11:56:021:29:006:474:39
6:49
#4748
25K
15.53 mi12:14:261:47:246:5518:24
7:35
#5673
30K
18.64 mi12:37:582:10:567:0123:32
7:34
#5966
20M
20.00 mi12:49:432:22:417:0811:45
8:39
#6429
21M
21.00 mi12:58:362:31:347:138:53
8:53
#6687
35K
21.75 mi13:04:592:37:577:166:23
8:32
#6917
23M
23.00 mi13:16:502:49:487:2311:51
9:28
#7553
24M
24.00 mi13:24:542:57:527:258:04
8:04
#7710
40K
24.85 mi13:32:063:05:047:277:12
8:25
#7896
25.2M
25.20 mi13:35:163:08:147:283:10
9:11
#7973
Finish
26.22 mi13:43:243:16:227:308:08
7:59
#8129
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4511421342134150(Top 16%)3896(Top 26%)3896(Top 173%)
10K6.21 mi3.10 mi3536+9753339+8743339+8742918(Top 11%)2788(Top 18%)2788(Top 124%)
15K9.32 mi3.11 mi3685-1493481-1423481-1424150(Top 16%)3896(Top 26%)3896(Top 173%)
20K12.43 mi3.11 mi4716-10314402-9214402-9216815(Top 26%)6077(Top 40%)6077(Top 270%)
Half13.11 mi0.68 mi4748-324425-234425-235452(Top 20%)5035(Top 33%)5035(Top 224%)
25K15.53 mi2.42 mi5673-9255217-7925217-7929439(Top 35%)7671(Top 51%)7671(Top 341%)
30K18.64 mi3.11 mi5966-2935440-2235440-2237756(Top 29%)6548(Top 43%)6548(Top 291%)
20M20.00 mi1.36 mi6429-4635780-3405780-34014527(Top 55%)9781(Top 64%)9781(Top 434%)
21M21.00 mi1.00 mi6687-2585952-1725952-17212716(Top 48%)8891(Top 59%)8891(Top 395%)
35K21.75 mi0.75 mi6917-2306123-1716123-17115441(Top 58%)10037(Top 66%)10037(Top 446%)
23M23.00 mi1.25 mi7553-6366523-4006523-40018162(Top 68%)11180(Top 74%)11180(Top 496%)
24M24.00 mi1.00 mi7710-1576603-806603-8011651(Top 44%)8219(Top 54%)8219(Top 365%)
40K24.85 mi0.85 mi7896-1866703-1006703-10012787(Top 48%)8662(Top 57%)8662(Top 385%)
25.2M25.20 mi0.35 mi7973-776739-366739-3613443(Top 50%)8936(Top 59%)8936(Top 397%)
Finish26.22 mi1.02 mi8129-1566821-826821-8211946(Top 45%)8244(Top 54%)8244(Top 366%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21story building
+97ft-345ft

Overall

4150

Males

3896

M45-49

3896

5K→10K

3.1 - 6.2 mi

Top 11%
×5story building
+79ft-138ft

Overall

2918

Males

2788

M45-49

2788

10K→15K

6.2 - 9.3 mi

Top 16%
×3story building
+67ft-78ft

Overall

4150

Males

3896

M45-49

3896

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

6815

Males

6077

M45-49

6077

20K→Half

12.4 - 13.1 mi

Top 20%
×2story building
+19ft-37ft

Overall

5452

Males

5035

M45-49

5035

Half→25K

13.1 - 15.5 mi

Top 35%
×4story building
+66ft-88ft

Overall

9439

Males

7671

M45-49

7671

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

7756

Males

6548

M45-49

6548

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

14527

Males

9781

M45-49

9781

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

12716

Males

8891

M45-49

8891

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

15441

Males

10037

M45-49

10037

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

18162

Males

11180

M45-49

11180

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

11651

Males

8219

M45-49

8219

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12787

Males

8662

M45-49

8662

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13443

Males

8936

M45-49

8936

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

11946

Males

8244

M45-49

8244

Passing Analysis

Category:
Athletes Passed
1260
Passed By
4878
Net Change
-3618
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4511
5K → 10K98914+975#4511#3536
10K → 15K60209-149#3536#3685
15K → 20K41035-1031#3685#4716
20K → Half1547-32#4716#4748
Half → 25K7932-925#4748#5673
25K → 30K56349-293#5673#5966
30K → 20M3466-463#5966#6429
20M → 21M15273-258#6429#6687
21M → 35K9239-230#6687#6917
35K → 23M13649-636#6917#7553
23M → 24M31188-157#7553#7710
24M → 40K24210-186#7710#7896
40K → 25.2M1087-77#7896#7973
25.2M → Finish24180-156#7973#8129
TOTALS12604878-3618
📊

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