Boston Marathon logo
BOSTON MARATHON 2025

Tazewell Shepard

Bib: 25736•M

AL

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:05
Rank: #17161
Start → 5K
8:04/mi
25:05 split
10K· 6.21 mi
49:56
Rank: #16794 (+367)
5K → 10K
8:00/mi
24:51 split
15K· 9.32 mi
1:15:08
Rank: #16780 (+14)
10K → 15K
8:07/mi
25:12 split
20K· 12.43 mi
1:40:33
Rank: #16613 (+167)
15K → 20K
8:11/mi
25:25 split
Half· 13.11 mi
1:46:09
Rank: #16647 (-34)
20K → Half
8:12/mi
5:36 split
25K· 15.53 mi
2:06:14
Rank: #16490 (+157)
Half → 25K
8:17/mi
20:05 split
30K· 18.64 mi
2:32:52
Rank: #16215 (+275)
25K → 30K
8:34/mi
26:38 split
20M
2:44:11
Rank: #15932 (+283)
30K → 20M
8:20/mi
11:19 split
21M
2:53:02
Rank: #15681 (+251)
20M → 21M
8:51/mi
8:51 split
35K· 21.75 mi
2:58:58
Rank: #15532 (+149)
21M → 35K
7:56/mi
5:56 split
23M
3:09:22
Rank: #15269 (+263)
35K → 23M
8:18/mi
10:24 split
24M
3:17:27
Rank: #15070 (+199)
23M → 24M
8:05/mi
8:05 split
40K· 24.85 mi
3:24:36
Rank: #14969 (+101)
24M → 40K
8:22/mi
7:09 split
25.2M
3:27:44
Rank: #14907 (+62)
40K → 25.2M
9:05/mi
3:08 split
Finish· 26.22 mi
3:35:49
Rank: #14773 (+134)
25.2M → Finish
7:56/mi
8:05 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
Time1:46:09
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time1:49:40
Pace8:22 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:3125:058:0425:05
8:04
-
10K
6.21 mi12:06:2249:568:0224:51
8:00
-0:04
15K
9.32 mi12:31:341:15:088:0425:12
8:07
+0:07
20K
12.43 mi12:56:591:40:338:0525:25
8:11
+0:04
Half
13.11 mi13:02:351:46:098:065:36
8:12
+0:01
25K
15.53 mi13:22:402:06:148:0820:05
8:17
+0:05
30K
18.64 mi13:49:182:32:528:1226:38
8:34
+0:17
20M
20.00 mi14:00:372:44:118:1311:19
8:20
-0:14
21M
21.00 mi14:09:282:53:028:148:51
8:51
+0:31
35K
21.75 mi14:15:242:58:588:145:56
7:56
-0:55
23M
23.00 mi14:25:483:09:228:1410:24
8:18
+0:22
24M
24.00 mi14:33:533:17:278:148:05
8:05
-0:13
40K
24.85 mi14:41:023:24:368:147:09
8:22
+0:17
25.2M
25.20 mi14:44:103:27:448:153:08
9:05
+0:43
Finish
26.22 mi14:52:153:35:498:148:05
7:56
-1:09

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

7:56 /mi

Average Pace

8:14 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:23:50

94% of race

Time at Steady Pace

11:59

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:14 /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 mi11:41:3125:058:0425:05
8:04
#17161
10K
6.21 mi12:06:2249:568:0224:51
8:00
#16794
15K
9.32 mi12:31:341:15:088:0425:12
8:07
#16780
20K
12.43 mi12:56:591:40:338:0525:25
8:11
#16613
Half
13.11 mi13:02:351:46:098:065:36
8:12
#16647
25K
15.53 mi13:22:402:06:148:0820:05
8:17
#16490
30K
18.64 mi13:49:182:32:528:1226:38
8:34
#16215
20M
20.00 mi14:00:372:44:118:1311:19
8:20
#15932
21M
21.00 mi14:09:282:53:028:148:51
8:51
#15681
35K
21.75 mi14:15:242:58:588:145:56
7:56
#15532
23M
23.00 mi14:25:483:09:228:1410:24
8:18
#15269
24M
24.00 mi14:33:533:17:278:148:05
8:05
#15070
40K
24.85 mi14:41:023:24:368:147:09
8:22
#14969
25.2M
25.20 mi14:44:103:27:448:153:08
9:05
#14907
Finish
26.22 mi14:52:153:35:498:148:05
7:56
#14773
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi17161112741127416799(Top 59%)11140(Top 69%)11140(Top 197%)
10K6.21 mi3.10 mi16794+36711132+14211132+14216451(Top 58%)11005(Top 68%)11005(Top 195%)
15K9.32 mi3.11 mi16780+14111321113216799(Top 59%)11140(Top 69%)11140(Top 197%)
20K12.43 mi3.11 mi16613+16711056+7611056+7616167(Top 57%)10806(Top 67%)10806(Top 192%)
Half13.11 mi0.68 mi16647-3411066-1011066-1017265(Top 61%)11292(Top 70%)11292(Top 200%)
25K15.53 mi2.42 mi16490+15710989+7710989+7715794(Top 56%)10557(Top 66%)10557(Top 187%)
30K18.64 mi3.11 mi16215+27510817+17210817+17215210(Top 54%)10146(Top 63%)10146(Top 180%)
20M20.00 mi1.36 mi15932+28310659+15810659+15812667(Top 45%)8855(Top 55%)8855(Top 157%)
21M21.00 mi1.00 mi15681+25110508+15110508+15112600(Top 44%)8648(Top 54%)8648(Top 153%)
35K21.75 mi0.75 mi15532+14910438+7010438+7011781(Top 41%)8228(Top 51%)8228(Top 146%)
23M23.00 mi1.25 mi15269+26310291+14710291+14712074(Top 43%)8274(Top 51%)8274(Top 147%)
24M24.00 mi1.00 mi15070+19910185+10610185+10611793(Top 42%)8066(Top 50%)8066(Top 143%)
40K24.85 mi0.85 mi14969+10110112+7310112+7312532(Top 44%)8302(Top 52%)8302(Top 147%)
25.2M25.20 mi0.35 mi14907+6210074+3810074+3812261(Top 43%)8144(Top 51%)8144(Top 144%)
Finish26.22 mi1.02 mi14773+1349989+859989+8512412(Top 44%)8245(Top 51%)8245(Top 146%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

16799

Males

11140

M18-39

11140

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

16451

Males

11005

M18-39

11005

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

16799

Males

11140

M18-39

11140

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

16167

Males

10806

M18-39

10806

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

17265

Males

11292

M18-39

11292

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

15794

Males

10557

M18-39

10557

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

15210

Males

10146

M18-39

10146

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12667

Males

8855

M18-39

8855

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12600

Males

8648

M18-39

8648

21M→35K

21.0 - 21.8 mi

Top 41%
×7story building
+17ft-86ft

Overall

11781

Males

8228

M18-39

8228

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

12074

Males

8274

M18-39

8274

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11793

Males

8066

M18-39

8066

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12532

Males

8302

M18-39

8302

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12261

Males

8144

M18-39

8144

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2story building
+22ft-21ft

Overall

12412

Males

8245

M18-39

8245

Passing Analysis

Category:
Athletes Passed
3171
Passed By
783
Net Change
+2388
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17161
5K → 10K515148+367#17161#16794
10K → 15K217203+14#16794#16780
15K → 20K287120+167#16780#16613
20K → Half2761-34#16613#16647
Half → 25K22568+157#16647#16490
25K → 30K36994+275#16490#16215
30K → 20M2918+283#16215#15932
20M → 21M26817+251#15932#15681
21M → 35K1512+149#15681#15532
35K → 23M2707+263#15532#15269
23M → 24M2056+199#15269#15070
24M → 40K12221+101#15070#14969
40K → 25.2M708+62#14969#14907
25.2M → Finish15420+134#14907#14773
TOTALS3171783+2388
📊

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