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BOSTON MARATHON 2025

Brisa Mcgrath

Bib: 7849•F

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 7%
Gender (Female)
#0 / 12228
Top 0.8%
Division (F18-39)
#0 / 5469
Top 2%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:45
Rank: #2820
Start → 5K
19:45 | 6:21/mi
10K· 6.21 mi
39:50
Rank: #3152 (-332)
5K → 10K
20:05 | 6:28/mi
15K· 9.32 mi
1:00:01
Rank: #3261 (-109)
10K → 15K
20:11 | 6:30/mi
20K· 12.43 mi
1:20:08
Rank: #3152 (+109)
15K → 20K
20:07 | 6:28/mi
Half· 13.11 mi
1:24:33
Rank: #3168 (-16)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:40:16
Rank: #3078 (+90)
Half → 25K
15:43 | 6:29/mi
30K· 18.64 mi
2:00:26
Rank: #2792 (+286)
25K → 30K
20:10 | 6:29/mi
20M
2:09:12
Rank: #2633 (+159)
30K → 20M
8:46 | 6:27/mi
21M
2:15:57
Rank: #2513 (+120)
20M → 21M
6:45 | 6:45/mi
35K· 21.75 mi
2:20:39
Rank: #2453 (+60)
21M → 35K
4:42 | 6:17/mi
23M
2:28:42
Rank: #2344 (+109)
35K → 23M
8:03 | 6:26/mi
24M
2:34:58
Rank: #2255 (+89)
23M → 24M
6:16 | 6:16/mi
40K· 24.85 mi
2:40:25
Rank: #2174 (+81)
24M → 40K
5:27 | 6:22/mi
25.2M
2:42:48
Rank: #2140 (+34)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:49:05
Rank: #2094 (+46)
25.2M → Finish
6:17 | 6:10/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:24:33
Pace6:27 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:24:32
Pace6:27 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:4319:456:2119:45
6:21
-
10K
6.21 mi10:48:4839:506:2520:05
6:28
+0:07
15K
9.32 mi11:08:591:00:016:2620:11
6:30
+0:02
20K
12.43 mi11:29:061:20:086:2720:07
6:28
-0:02
Half
13.11 mi11:33:311:24:336:274:25
6:28
0:00
25K
15.53 mi11:49:141:40:166:2715:43
6:29
+0:01
30K
18.64 mi12:09:242:00:266:2820:10
6:29
0:00
20M
20.00 mi12:18:102:09:126:288:46
6:27
-0:02
21M
21.00 mi12:24:552:15:576:286:45
6:45
+0:18
35K
21.75 mi12:29:372:20:396:284:42
6:17
-0:28
23M
23.00 mi12:37:402:28:426:288:03
6:26
+0:09
24M
24.00 mi12:43:562:34:586:276:16
6:16
-0:10
40K
24.85 mi12:49:232:40:256:275:27
6:22
+0:06
25.2M
25.20 mi12:51:462:42:486:282:23
6:55
+0:33
Finish
26.22 mi12:58:032:49:056:276:17
6:10
-0:45

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

6:10 /mi

Average Pace

6:27 /mi

Slowest Pace

6:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:42

99% of race

Time at Steady Pace

2:23

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:27 /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 mi10:28:4319:456:2119:45
6:21
#2820
10K
6.21 mi10:48:4839:506:2520:05
6:28
#3152
15K
9.32 mi11:08:591:00:016:2620:11
6:30
#3261
20K
12.43 mi11:29:061:20:086:2720:07
6:28
#3152
Half
13.11 mi11:33:311:24:336:274:25
6:28
#3168
25K
15.53 mi11:49:141:40:166:2715:43
6:29
#3078
30K
18.64 mi12:09:242:00:266:2820:10
6:29
#2792
20M
20.00 mi12:18:102:09:126:288:46
6:27
#2633
21M
21.00 mi12:24:552:15:576:286:45
6:45
#2513
35K
21.75 mi12:29:372:20:396:284:42
6:17
#2453
23M
23.00 mi12:37:402:28:426:288:03
6:26
#2344
24M
24.00 mi12:43:562:34:586:276:16
6:16
#2255
40K
24.85 mi12:49:232:40:256:275:27
6:22
#2174
25.2M
25.20 mi12:51:462:42:486:282:23
6:55
#2140
Finish
26.22 mi12:58:032:49:056:276:17
6:10
#2094
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi28201291293559(Top 13%)186(Top 2%)186(Top 3%)
10K6.21 mi3.10 mi3152-332148-19148-193494(Top 12%)175(Top 1%)175(Top 3%)
15K9.32 mi3.11 mi3261-109154-6154-63559(Top 13%)186(Top 2%)186(Top 3%)
20K12.43 mi3.11 mi3152+109142+12142+122988(Top 11%)136(Top 1%)136(Top 2%)
Half13.11 mi0.68 mi3168-16143-1143-13567(Top 13%)176(Top 1%)176(Top 3%)
25K15.53 mi2.42 mi3078+90137+6137+62810(Top 10%)130(Top 1%)130(Top 2%)
30K18.64 mi3.11 mi2792+286124+13124+131948(Top 7%)89(Top 0.7%)89(Top 2%)
20M20.00 mi1.36 mi2633+159112+12112+121461(Top 5%)74(Top 0.6%)74(Top 1%)
21M21.00 mi1.00 mi2513+120110+2110+21389(Top 5%)70(Top 0.6%)70(Top 1%)
35K21.75 mi0.75 mi2453+60107+3107+31577(Top 6%)91(Top 0.7%)91(Top 2%)
23M23.00 mi1.25 mi2344+109104+3104+31255(Top 4%)68(Top 0.6%)68(Top 1%)
24M24.00 mi1.00 mi2255+89103+1103+11240(Top 4%)72(Top 0.6%)72(Top 1%)
40K24.85 mi0.85 mi2174+81102+1102+11207(Top 4%)76(Top 0.6%)76(Top 1%)
25.2M25.20 mi0.35 mi2140+341021021292(Top 5%)100(Top 0.8%)100(Top 2%)
Finish26.22 mi1.02 mi2094+46101+1101+11441(Top 5%)95(Top 0.8%)95(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3559

Females

186

F18-39

186

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3494

Females

175

F18-39

175

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3559

Females

186

F18-39

186

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

2988

Females

136

F18-39

136

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3567

Females

176

F18-39

176

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2810

Females

130

F18-39

130

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1948

Females

89

F18-39

89

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1461

Females

74

F18-39

74

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1389

Females

70

F18-39

70

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1577

Females

91

F18-39

91

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1255

Females

68

F18-39

68

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1240

Females

72

F18-39

72

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1207

Females

76

F18-39

76

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1292

Females

100

F18-39

100

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1441

Females

95

F18-39

95

Passing Analysis

Category:
Athletes Passed
1373
Passed By
647
Net Change
+726
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2820
5K → 10K41373-332#2820#3152
10K → 15K49158-109#3152#3261
15K → 20K13627+109#3261#3152
20K → Half1228-16#3152#3168
Half → 25K11121+90#3168#3078
25K → 30K29812+286#3078#2792
30K → 20M1601+159#2792#2633
20M → 21M1200+120#2633#2513
21M → 35K655+60#2513#2453
35K → 23M1145+109#2453#2344
23M → 24M945+89#2344#2255
24M → 40K832+81#2255#2174
40K → 25.2M362+34#2174#2140
25.2M → Finish548+46#2140#2094
TOTALS1373647+726
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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