Boston Marathon logo
BOSTON MARATHON 2023

Jeremiah Tatum

TN

Bib: 12300 M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 38%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 42%
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:39/mi
23:45
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:35/mi
47:19
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:36/mi
1:10:55
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:43/mi
1:34:53
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:36/mi
1:40:04
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:42/mi
1:58:45
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:49/mi
2:23:02
↑ 181↓ 1480.2%
138 ft elev
20M
7:53/mi
2:33:45
↑ 64↓ 500.2%
148 ft elev
21M
8:19/mi
2:42:04
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:45/mi
2:47:52
↑ 17↓ 861.7%
156 ft elev
23M
8:02/mi
2:57:56
↑ 23↓ 630.6%
116 ft elev
24M
7:50/mi
3:05:46
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:56/mi
3:12:33
↓ 200.3%
20 ft elev
25.2M
8:33/mi
3:15:30
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:50/mi
3:23:29
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:40:047:38 /mi⚡ faster
2nd Half
1:43:257:53 /mi+3.3%
Positive split — 3.3% slower in the second half
Is this your race?

Claim it for a free AI report

A coach's-eye read of your race — emailed to you, free.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5323:457:3923:45
7:39
-
10K
6.21 mi11:15:2747:197:3723:34
7:35
-0:04
15K
9.32 mi11:39:031:10:557:3723:36
7:36
+0:01
20K
12.43 mi12:03:011:34:537:3823:58
7:43
+0:07
Half
13.11 mi12:08:121:40:047:385:11
7:36
-0:07
25K
15.53 mi12:26:531:58:457:3918:41
7:42
+0:06
30K
18.64 mi12:51:102:23:027:4024:17
7:49
+0:07
20M
20.00 mi13:01:532:33:457:4110:43
7:53
+0:04
21M
21.00 mi13:10:122:42:047:438:19
8:19
+0:26
35K
21.75 mi13:16:002:47:527:435:48
7:45
-0:34
23M
23.00 mi13:26:042:57:567:4410:04
8:02
+0:17
24M
24.00 mi13:33:543:05:467:447:50
7:50
-0:12
40K
24.85 mi13:40:413:12:337:456:47
7:56
+0:06
25.2M
25.20 mi13:43:383:15:307:452:57
8:33
+0:37
Finish
26.22 mi13:51:373:23:297:467:59
7:50
-0:43

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

7:35 /mi

Average Pace

7:46 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:32

99% of race

Time at Steady Pace

2:57

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:46 /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 mi10:51:5323:457:3923:45
7:39
#10953
10K
6.21 mi11:15:2747:197:3723:34
7:35
#11044
15K
9.32 mi11:39:031:10:557:3723:36
7:36
#10997
20K
12.43 mi12:03:011:34:537:3823:58
7:43
#10995
Half
13.11 mi12:08:121:40:047:385:11
7:36
#10991
25K
15.53 mi12:26:531:58:457:3918:41
7:42
#10852
30K
18.64 mi12:51:102:23:027:4024:17
7:49
#10547
20M
20.00 mi13:01:532:33:457:4110:43
7:53
#10459
21M
21.00 mi13:10:122:42:047:438:19
8:19
#10364
35K
21.75 mi13:16:002:47:527:435:48
7:45
#10347
23M
23.00 mi13:26:042:57:567:4410:04
8:02
#10297
24M
24.00 mi13:33:543:05:467:447:50
7:50
#10261
40K
24.85 mi13:40:413:12:337:456:47
7:56
#10202
25.2M
25.20 mi13:43:383:15:307:452:57
8:33
#10184
Finish
26.22 mi13:51:373:23:297:467:59
7:50
#10192
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi10953863486341097086278627
10K6.21 mi3.10 mi11044-918681-478681-471117787418741
15K9.32 mi3.11 mi10997+478651+308651+301097086278627
20K12.43 mi3.11 mi10995+28650+18650+11102085858585
Half13.11 mi0.68 mi10991+48645+58645+51093285718571
25K15.53 mi2.42 mi10852+1398562+838562+831031781618161
30K18.64 mi3.11 mi10547+3058354+2088354+208948575527552
20M20.00 mi1.36 mi10459+888296+588296+58946174527452
21M21.00 mi1.00 mi10364+958220+768220+76931472517251
35K21.75 mi0.75 mi10347+178196+248196+241027277657765
23M23.00 mi1.25 mi10297+508140+568140+561002074897489
24M24.00 mi1.00 mi10261+368093+478093+471001373947394
40K24.85 mi0.85 mi10202+598042+518042+51957271197119
25.2M25.20 mi0.35 mi10184+188021+218021+21982072067206
Finish26.22 mi1.02 mi10192-87985+367985+361091577527752

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

10970

Males

8627

M45-49

8627

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11177

Males

8741

M45-49

8741

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

10970

Males

8627

M45-49

8627

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11020

Males

8585

M45-49

8585

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

10932

Males

8571

M45-49

8571

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

10317

Males

8161

M45-49

8161

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9485

Males

7552

M45-49

7552

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9461

Males

7452

M45-49

7452

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9314

Males

7251

M45-49

7251

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10272

Males

7765

M45-49

7765

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10020

Males

7489

M45-49

7489

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10013

Males

7394

M45-49

7394

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9572

Males

7119

M45-49

7119

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9820

Males

7206

M45-49

7206

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

10915

Males

7752

M45-49

7752

Passing Analysis

Category:
Athletes Passed
1886*
Passed By
1125
Net Change
+761
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10953
5K → 10K256347-91#10953#11044
10K → 15K206159+47#11044#10997
15K → 20K160158+2#10997#10995
20K → Half2521+4#10995#10991
Half → 25K18849+139#10991#10852
25K → 30K35146+305#10852#10547
30K → 20M120*32+88#10547#10459
20M → 21M13540+95#10459#10364
21M → 35K5336+17#10364#10347
35K → 23M10858+50#10347#10297
23M → 24M7438+36#10297#10261
24M → 40K10344+59#10261#10202
40K → 25.2M36*18+18#10202#10184
25.2M → Finish7179-8#10184#10192
TOTALS1886*1125+761

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

Passing Charts

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