Clinton Firstbrook Iv

Bib: 25875M

VA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:19
Rank: #21891
Start5K
29:19 | 9:26/mi
10K· 6.21 mi
56:50
Rank: #21232 (+659)
5K10K
27:31 | 8:51/mi
15K· 9.32 mi
1:24:42
Rank: #20970 (+262)
10K15K
27:52 | 8:58/mi
20K· 12.43 mi
1:52:45
Rank: #20666 (+304)
15K20K
28:03 | 9:02/mi
Half· 13.11 mi
1:58:51
Rank: #20635 (+31)
20KHalf
6:06 | 8:56/mi
25K· 15.53 mi
2:21:23
Rank: #20564 (+71)
Half25K
22:32 | 9:18/mi
30K· 18.64 mi
2:51:27
Rank: #20442 (+122)
25K30K
30:04 | 9:41/mi
20M
3:04:44
Rank: #20389 (+53)
30K20M
13:17 | 9:46/mi
21M
3:16:01
Rank: #20461 (-72)
20M21M
11:17 | 11:17/mi
35K· 21.75 mi
3:22:58
Rank: #20394 (+67)
21M35K
6:57 | 9:17/mi
23M
3:35:36
Rank: #20376 (+18)
35K23M
12:38 | 10:05/mi
24M
3:45:08
Rank: #20332 (+44)
23M24M
9:32 | 9:32/mi
40K· 24.85 mi
3:53:38
Rank: #20295 (+37)
24M40K
8:30 | 9:56/mi
25.2M
3:57:42
Rank: #20331 (-36)
40K25.2M
4:04 | 11:48/mi
Finish· 26.22 mi
4:09:05
Rank: #20552 (-221)
25.2MFinish
11:23 | 11:10/mi

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
Time1:58:51
Pace9:04 /mi
2nd Half
Distance13.11 mi
Time2:10:14
Pace9:56 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:4129:199:2629:19
9:26
-
10K
6.21 mi12:13:1256:509:0927:31
8:51
-0:35
15K
9.32 mi12:41:041:24:429:0527:52
8:58
+0:07
20K
12.43 mi13:09:071:52:459:0428:03
9:02
+0:04
Half
13.11 mi13:15:131:58:519:046:06
8:56
-0:06
25K
15.53 mi13:37:452:21:239:0622:32
9:18
+0:22
30K
18.64 mi14:07:492:51:279:1230:04
9:41
+0:23
20M
20.00 mi14:21:063:04:449:1413:17
9:46
+0:05
21M
21.00 mi14:32:233:16:019:2011:17
11:17
+1:31
35K
21.75 mi14:39:203:22:589:206:57
9:17
-2:00
23M
23.00 mi14:51:583:35:369:2212:38
10:05
+0:48
24M
24.00 mi15:01:303:45:089:239:32
9:32
-0:33
40K
24.85 mi15:10:003:53:389:248:30
9:56
+0:24
25.2M
25.20 mi15:14:043:57:429:264:04
11:48
+1:52
Finish
26.22 mi15:25:274:09:059:3011:23
11:10
-0:38

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

8:51 /mi

Average Pace

9:30 /mi

Slowest Pace

11:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:32

36% of race

Time at Steady Pace

2:00:11

48% of race

Time at Slower Pace

39:22

16% of race

Average Pace: 9:30 /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 mi11:45:4129:199:2629:19
9:26
#21891
10K
6.21 mi12:13:1256:509:0927:31
8:51
#21232
15K
9.32 mi12:41:041:24:429:0527:52
8:58
#20970
20K
12.43 mi13:09:071:52:459:0428:03
9:02
#20666
Half
13.11 mi13:15:131:58:519:046:06
8:56
#20635
25K
15.53 mi13:37:452:21:239:0622:32
9:18
#20564
30K
18.64 mi14:07:492:51:279:1230:04
9:41
#20442
20M
20.00 mi14:21:063:04:449:1413:17
9:46
#20389
21M
21.00 mi14:32:233:16:019:2011:17
11:17
#20461
35K
21.75 mi14:39:203:22:589:206:57
9:17
#20394
23M
23.00 mi14:51:583:35:369:2212:38
10:05
#20376
24M
24.00 mi15:01:303:45:089:239:32
9:32
#20332
40K
24.85 mi15:10:003:53:389:248:30
9:56
#20295
25.2M
25.20 mi15:14:043:57:429:264:04
11:48
#20331
Finish
26.22 mi15:25:274:09:059:3011:23
11:10
#20552
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi21891130401304020356(Top 76%)12458(Top 82%)12458(Top 556%)
10K6.21 mi3.10 mi21232+65912775+26512775+26520200(Top 76%)12361(Top 81%)12361(Top 552%)
15K9.32 mi3.11 mi20970+26212676+9912676+9920356(Top 76%)12458(Top 82%)12458(Top 556%)
20K12.43 mi3.11 mi20666+30412560+11612560+11619830(Top 74%)12237(Top 81%)12237(Top 546%)
Half13.11 mi0.68 mi20635+3112551+912551+920154(Top 76%)12381(Top 82%)12381(Top 552%)
25K15.53 mi2.42 mi20564+7112527+2412527+2420181(Top 76%)12366(Top 81%)12366(Top 552%)
30K18.64 mi3.11 mi20442+12212444+8312444+8320057(Top 75%)12238(Top 81%)12238(Top 546%)
20M20.00 mi1.36 mi20389+5312411+3312411+3319773(Top 74%)12016(Top 79%)12016(Top 536%)
21M21.00 mi1.00 mi20461-7212435-2412435-2421433(Top 81%)12708(Top 84%)12708(Top 567%)
35K21.75 mi0.75 mi20394+6712392+4312392+4319107(Top 72%)11646(Top 77%)11646(Top 520%)
23M23.00 mi1.25 mi20376+1812373+1912373+1920239(Top 76%)12118(Top 80%)12118(Top 541%)
24M24.00 mi1.00 mi20332+4412350+2312350+2319330(Top 73%)11685(Top 77%)11685(Top 521%)
40K24.85 mi0.85 mi20295+3712318+3212318+3219808(Top 74%)11838(Top 78%)11838(Top 528%)
25.2M25.20 mi0.35 mi20331-3612328-1012328-1022107(Top 83%)12897(Top 85%)12897(Top 576%)
Finish26.22 mi1.02 mi20552-22112417-8912417-8924247(Top 91%)13947(Top 92%)13947(Top 622%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

20356

Males

12458

M40-44

12458

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

20200

Males

12361

M40-44

12361

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

20356

Males

12458

M40-44

12458

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

19830

Males

12237

M40-44

12237

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

20154

Males

12381

M40-44

12381

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

20181

Males

12366

M40-44

12366

25K→30K

15.5 - 18.6 mi

Top 75%
×9stories
+181ft-148ft

Overall

20057

Males

12238

M40-44

12238

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

19773

Males

12016

M40-44

12016

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

21433

Males

12708

M40-44

12708

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

19107

Males

11646

M40-44

11646

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

20239

Males

12118

M40-44

12118

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

19330

Males

11685

M40-44

11685

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19808

Males

11838

M40-44

11838

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22107

Males

12897

M40-44

12897

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2stories
+22ft-21ft

Overall

24247

Males

13947

M40-44

13947

Passing Analysis

Category:
Athletes Passed
2223
Passed By
884
Net Change
+1339
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21891
5K10K72263+659#21891#21232
10K15K33270+262#21232#20970
15K20K34440+304#20970#20666
20KHalf4110+31#20666#20635
Half25K14170+71#20635#20564
25K30K20583+122#20564#20442
30K20M10249+53#20442#20389
20M21M46118-72#20389#20461
21M35K7811+67#20461#20394
35K23M7456+18#20394#20376
23M24M6117+44#20376#20332
24M40K6225+37#20332#20295
40K25.2M945-36#20295#20331
25.2MFinish6227-221#20331#20552
TOTALS2223884+1339
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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