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BOSTON MARATHON 2025

Blake Briscoe

Bib: 28688•M

KS

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 30%
Gender (Male)
#0 / 16105
Top 44%
Masters (Masters Men)
#0 / 10463
Top 31%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ 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
7:32/mi
23:23
↑ 97↓ 3451.5%
10K· 6.21 mi
7:23/mi
46:18
↑ 79↓ 1380.4%
15K· 9.32 mi
7:27/mi
1:09:26
↑ 67↓ 78
20K· 12.43 mi
7:17/mi
1:32:03
↑ 106↓ 860.1%
Half· 13.11 mi
7:04/mi
1:36:52
↑ 19↓ 370.5%
25K· 15.53 mi
7:14/mi
1:54:25
↑ 66↓ 880.2%
30K· 18.64 mi
7:30/mi
2:17:42
↑ 181↓ 1480.2%
20M
7:30/mi
2:27:54
↑ 64↓ 500.2%
21M
7:50/mi
2:35:44
↑ 106↓ 241.6%
35K· 21.75 mi
7:22/mi
2:41:15
↑ 17↓ 861.7%
23M
7:41/mi
2:50:52
↑ 23↓ 630.6%
24M
7:30/mi
2:58:22
↓ 821.3%
40K· 24.85 mi
7:43/mi
3:04:58
↓ 200.3%
25.2M
8:27/mi
3:07:53
↑ 13↓ 160.2%
Finish· 26.22 mi
7:12/mi
3:15:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:52
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:38:21
Pace7:30 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:39:5923:237:3223:23
7:32
-
10K
6.21 mi12:02:5446:187:2722:55
7:23
-0:09
15K
9.32 mi12:26:021:09:267:2723:08
7:27
+0:04
20K
12.43 mi12:48:391:32:037:2422:37
7:17
-0:10
Half
13.11 mi12:53:281:36:527:234:49
7:04
-0:13
25K
15.53 mi13:11:011:54:257:2217:33
7:14
+0:10
30K
18.64 mi13:34:182:17:427:2323:17
7:30
+0:16
20M
20.00 mi13:44:302:27:547:2410:12
7:30
0:00
21M
21.00 mi13:52:202:35:447:257:50
7:50
+0:20
35K
21.75 mi13:57:512:41:157:255:31
7:22
-0:28
23M
23.00 mi14:07:282:50:527:269:37
7:41
+0:19
24M
24.00 mi14:14:582:58:227:267:30
7:30
-0:11
40K
24.85 mi14:21:343:04:587:276:36
7:43
+0:13
25.2M
25.20 mi14:24:293:07:537:272:55
8:27
+0:44
Finish
26.22 mi14:31:493:15:137:277:20
7:12
-1:15

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

7:04 /mi

Average Pace

7:27 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:04:28

94% of race

Time at Steady Pace

7:50

4% of race

Time at Slower Pace

2:55

1% of race

Average Pace: 7:27 /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 mi11:39:5923:237:3223:23
7:32
#12445
10K
6.21 mi12:02:5446:187:2722:55
7:23
#11695
15K
9.32 mi12:26:021:09:267:2723:08
7:27
#11519
20K
12.43 mi12:48:391:32:037:2422:37
7:17
#10821
Half
13.11 mi12:53:281:36:527:234:49
7:04
#10656
25K
15.53 mi13:11:011:54:257:2217:33
7:14
#10139
30K
18.64 mi13:34:182:17:427:2323:17
7:30
#9594
20M
20.00 mi13:44:302:27:547:2410:12
7:30
#9337
21M
21.00 mi13:52:202:35:447:257:50
7:50
#9125
35K
21.75 mi13:57:512:41:157:255:31
7:22
#9044
23M
23.00 mi14:07:282:50:527:269:37
7:41
#8897
24M
24.00 mi14:14:582:58:227:267:30
7:30
#8810
40K
24.85 mi14:21:343:04:587:276:36
7:43
#8728
25.2M
25.20 mi14:24:293:07:537:272:55
8:27
#8710
Finish
26.22 mi14:31:493:15:137:277:20
7:12
#8628
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi124459371937111277(Top 40%)8723(Top 54%)8723(Top 388%)
10K6.21 mi3.10 mi11695+7509016+3559016+35510954(Top 39%)8632(Top 54%)8632(Top 384%)
15K9.32 mi3.11 mi11519+1768898+1188898+11811277(Top 40%)8723(Top 54%)8723(Top 388%)
20K12.43 mi3.11 mi10821+6988539+3598539+3598865(Top 31%)7376(Top 46%)7376(Top 328%)
Half13.11 mi0.68 mi10656+1658455+848455+847995(Top 28%)6896(Top 43%)6896(Top 307%)
25K15.53 mi2.42 mi10139+5178135+3208135+3207887(Top 28%)6695(Top 42%)6695(Top 298%)
30K18.64 mi3.11 mi9594+5457793+3427793+3427702(Top 27%)6412(Top 40%)6412(Top 285%)
20M20.00 mi1.36 mi9337+2577624+1697624+1697062(Top 25%)5880(Top 37%)5880(Top 262%)
21M21.00 mi1.00 mi9125+2127474+1507474+1506392(Top 23%)5328(Top 33%)5328(Top 237%)
35K21.75 mi0.75 mi9044+817408+667408+667713(Top 27%)6130(Top 38%)6130(Top 273%)
23M23.00 mi1.25 mi8897+1477276+1327276+1327769(Top 27%)6028(Top 37%)6028(Top 268%)
24M24.00 mi1.00 mi8810+877192+847192+847673(Top 27%)5921(Top 37%)5921(Top 264%)
40K24.85 mi0.85 mi8728+827106+867106+868199(Top 29%)6098(Top 38%)6098(Top 271%)
25.2M25.20 mi0.35 mi8710+187080+267080+268511(Top 30%)6196(Top 38%)6196(Top 276%)
Finish26.22 mi1.02 mi8628+827006+747006+747012(Top 25%)5342(Top 33%)5342(Top 238%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11277

Males

8723

M40-44

8723

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10954

Males

8632

M40-44

8632

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11277

Males

8723

M40-44

8723

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8865

Males

7376

M40-44

7376

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

7995

Males

6896

M40-44

6896

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

7887

Males

6695

M40-44

6695

25K→30K

15.5 - 18.6 mi

Top 27%
×9story building
+181ft-148ft

Overall

7702

Males

6412

M40-44

6412

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

7062

Males

5880

M40-44

5880

20M→21M

20.0 - 21.0 mi

Top 23%
×8story building
+106ft-24ft

Overall

6392

Males

5328

M40-44

5328

21M→35K

21.0 - 21.8 mi

Top 27%
×7story building
+17ft-86ft

Overall

7713

Males

6130

M40-44

6130

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7769

Males

6028

M40-44

6028

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7673

Males

5921

M40-44

5921

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8199

Males

6098

M40-44

6098

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8511

Males

6196

M40-44

6196

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2story building
+22ft-21ft

Overall

7012

Males

5342

M40-44

5342

Passing Analysis

Category:
Athletes Passed
4191*
Passed By
374
Net Change
+3817
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12445
5K → 10K80454+750#12445#11695
10K → 15K26791+176#11695#11519
15K → 20K7046+698#11519#10821
20K → Half1650+165#10821#10656
Half → 25K5214+517#10656#10139
25K → 30K562*17+545#10139#9594
30K → 20M2636+257#9594#9337
20M → 21M2219+212#9337#9125
21M → 35K9514+81#9125#9044
35K → 23M18235+147#9044#8897
23M → 24M12336+87#8897#8810
24M → 40K12038+82#8810#8728
40K → 25.2M4325+18#8728#8710
25.2M → Finish12139+82#8710#8628
TOTALS4191*374+3817

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

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing