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BOSTON MARATHON 2025

Brenda Mcclure

Bib: 19753•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 37%
Masters (Masters Women)
#0 / 6759
Top 23%
Division (F45-49)
#0 / 1813
Top 27%
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
7:53/mi
24:31
↑ 97↓ 3451.5%
10K· 6.21 mi
7:51/mi
48:55
↑ 79↓ 1380.4%
15K· 9.32 mi
7:48/mi
1:13:08
↑ 67↓ 78
20K· 12.43 mi
7:59/mi
1:37:56
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:43:22
↑ 19↓ 370.5%
25K· 15.53 mi
8:10/mi
2:03:09
↑ 66↓ 880.2%
30K· 18.64 mi
8:35/mi
2:29:49
↑ 181↓ 1480.2%
20M
8:41/mi
2:41:37
↑ 64↓ 500.2%
21M
9:16/mi
2:50:53
↑ 106↓ 241.6%
35K· 21.75 mi
8:15/mi
2:57:03
↑ 17↓ 861.7%
23M
8:25/mi
3:07:35
↑ 23↓ 630.6%
24M
8:13/mi
3:15:48
↓ 821.3%
40K· 24.85 mi
8:29/mi
3:23:03
↓ 200.3%
25.2M
9:05/mi
3:26:11
↑ 13↓ 160.2%
Finish· 26.22 mi
8:11/mi
3:34:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:22
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:51:09
Pace8:29 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2224:317:5324:31
7:53
-
10K
6.21 mi11:40:4648:557:5224:24
7:51
-0:02
15K
9.32 mi12:04:591:13:087:5124:13
7:48
-0:03
20K
12.43 mi12:29:471:37:567:5324:48
7:59
+0:11
Half
13.11 mi12:35:131:43:227:535:26
7:58
-0:01
25K
15.53 mi12:55:002:03:097:5619:47
8:10
+0:12
30K
18.64 mi13:21:402:29:498:0226:40
8:35
+0:25
20M
20.00 mi13:33:282:41:378:0511:48
8:41
+0:06
21M
21.00 mi13:42:442:50:538:089:16
9:16
+0:35
35K
21.75 mi13:48:542:57:038:086:10
8:15
-1:01
23M
23.00 mi13:59:263:07:358:0910:32
8:25
+0:10
24M
24.00 mi14:07:393:15:488:108:13
8:13
-0:12
40K
24.85 mi14:14:543:23:038:107:15
8:29
+0:16
25.2M
25.20 mi14:18:023:26:118:113:08
9:05
+0:36
Finish
26.22 mi14:26:223:34:318:118:20
8:11
-0:54

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

7:48 /mi

Average Pace

8:11 /mi

Slowest Pace

9:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:39

76% of race

Time at Steady Pace

41:36

19% of race

Time at Slower Pace

9:16

4% of race

Average Pace: 8:11 /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 mi11:16:2224:317:5324:31
7:53
#15611
10K
6.21 mi11:40:4648:557:5224:24
7:51
#15435
15K
9.32 mi12:04:591:13:087:5124:13
7:48
#15053
20K
12.43 mi12:29:471:37:567:5324:48
7:59
#14930
Half
13.11 mi12:35:131:43:227:535:26
7:58
#14967
25K
15.53 mi12:55:002:03:097:5619:47
8:10
#14972
30K
18.64 mi13:21:402:29:498:0226:40
8:35
#15018
20M
20.00 mi13:33:282:41:378:0511:48
8:41
#14992
21M
21.00 mi13:42:442:50:538:089:16
9:16
#14935
35K
21.75 mi13:48:542:57:038:086:10
8:15
#14878
23M
23.00 mi13:59:263:07:358:0910:32
8:25
#14709
24M
24.00 mi14:07:393:15:488:108:13
8:13
#14603
40K
24.85 mi14:14:543:23:038:107:15
8:29
#14520
25.2M
25.20 mi14:18:023:26:118:113:08
9:05
#14475
Finish
26.22 mi14:26:223:34:318:118:20
8:11
#14425
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi156114902490214347(Top 51%)4235(Top 35%)4235(Top 234%)
10K6.21 mi3.10 mi15435+1764799+1034799+10315306(Top 54%)4726(Top 39%)4726(Top 261%)
15K9.32 mi3.11 mi15053+3824588+2114588+21114347(Top 51%)4235(Top 35%)4235(Top 234%)
20K12.43 mi3.11 mi14930+1234546+424546+4214810(Top 52%)4540(Top 37%)4540(Top 250%)
Half13.11 mi0.68 mi14967-374574-284574-2815644(Top 55%)4964(Top 41%)4964(Top 274%)
25K15.53 mi2.42 mi14972-54597-234597-2315050(Top 53%)4757(Top 39%)4757(Top 262%)
30K18.64 mi3.11 mi15018-464679-824679-8215286(Top 54%)5064(Top 41%)5064(Top 279%)
20M20.00 mi1.36 mi14992+264695-164695-1614957(Top 53%)5016(Top 41%)5016(Top 277%)
21M21.00 mi1.00 mi14935+574684+114684+1114980(Top 53%)5163(Top 42%)5163(Top 285%)
35K21.75 mi0.75 mi14878+574667+174667+1713931(Top 49%)4643(Top 38%)4643(Top 256%)
23M23.00 mi1.25 mi14709+1694605+624605+6212797(Top 45%)4163(Top 34%)4163(Top 230%)
24M24.00 mi1.00 mi14603+1064575+304575+3012728(Top 45%)4183(Top 34%)4183(Top 231%)
40K24.85 mi0.85 mi14520+834559+164559+1613326(Top 47%)4613(Top 38%)4613(Top 254%)
25.2M25.20 mi0.35 mi14475+454547+124547+1212368(Top 44%)4167(Top 34%)4167(Top 230%)
Finish26.22 mi1.02 mi14425+504552-54552-514145(Top 50%)5021(Top 41%)5021(Top 277%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

14347

Females

4235

F45-49

4235

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

15306

Females

4726

F45-49

4726

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

14347

Females

4235

F45-49

4235

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

14810

Females

4540

F45-49

4540

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15644

Females

4964

F45-49

4964

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

15050

Females

4757

F45-49

4757

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

15286

Females

5064

F45-49

5064

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

14957

Females

5016

F45-49

5016

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14980

Females

5163

F45-49

5163

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

13931

Females

4643

F45-49

4643

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12797

Females

4163

F45-49

4163

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

12728

Females

4183

F45-49

4183

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13326

Females

4613

F45-49

4613

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12368

Females

4167

F45-49

4167

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

14145

Females

5021

F45-49

5021

Passing Analysis

Category:
Athletes Passed
2511
Passed By
1325
Net Change
+1186
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15611
5K → 10K407231+176#15611#15435
10K → 15K43452+382#15435#15053
15K → 20K267144+123#15053#14930
20K → Half2764-37#14930#14967
Half → 25K176181-5#14967#14972
25K → 30K236282-46#14972#15018
30K → 20M142116+26#15018#14992
20M → 21M13881+57#14992#14935
21M → 35K8427+57#14935#14878
35K → 23M20132+169#14878#14709
23M → 24M13125+106#14709#14603
24M → 40K11431+83#14603#14520
40K → 25.2M5611+45#14520#14475
25.2M → Finish9848+50#14475#14425
TOTALS25111325+1186
📊

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