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BOSTON MARATHON 2025

Gillian Allen

Bib: 12177•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 37%
Gender (Female)
#0 / 12228
Top 21%
Masters (Masters Women)
#0 / 6759
Top 8%
Division (F45-49)
#0 / 1813
Top 10%
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
7:40/mi
23:48
↑ 97↓ 3451.5%
10K· 6.21 mi
7:38/mi
47:30
↑ 79↓ 1380.4%
15K· 9.32 mi
7:36/mi
1:11:06
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:34:48
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:39:55
↑ 19↓ 370.5%
25K· 15.53 mi
7:36/mi
1:58:20
↑ 66↓ 880.2%
30K· 18.64 mi
7:59/mi
2:23:09
↑ 181↓ 1480.2%
20M
7:41/mi
2:33:36
↑ 64↓ 500.2%
21M
8:06/mi
2:41:42
↑ 106↓ 241.6%
35K· 21.75 mi
7:34/mi
2:47:22
↑ 17↓ 861.7%
23M
7:46/mi
2:57:06
↑ 23↓ 630.6%
24M
7:33/mi
3:04:39
↓ 821.3%
40K· 24.85 mi
7:41/mi
3:11:13
↓ 200.3%
25.2M
8:22/mi
3:14:06
↑ 13↓ 160.2%
Finish· 26.22 mi
7:13/mi
3:21:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:55
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:41:32
Pace7:45 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4223:487:4023:48
7:40
-
10K
6.21 mi11:15:2447:307:3923:42
7:38
-0:02
15K
9.32 mi11:39:001:11:067:3823:36
7:36
-0:02
20K
12.43 mi12:02:421:34:487:3823:42
7:38
+0:02
Half
13.11 mi12:07:491:39:557:375:07
7:30
-0:08
25K
15.53 mi12:26:141:58:207:3718:25
7:36
+0:06
30K
18.64 mi12:51:032:23:097:4124:49
7:59
+0:23
20M
20.00 mi13:01:302:33:367:4110:27
7:41
-0:18
21M
21.00 mi13:09:362:41:427:428:06
8:06
+0:25
35K
21.75 mi13:15:162:47:227:425:40
7:34
-0:32
23M
23.00 mi13:25:002:57:067:429:44
7:46
+0:12
24M
24.00 mi13:32:333:04:397:427:33
7:33
-0:13
40K
24.85 mi13:39:073:11:137:426:34
7:41
+0:08
25.2M
25.20 mi13:42:003:14:067:422:53
8:22
+0:41
Finish
26.22 mi13:49:213:21:277:417:21
7:13
-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

7:13 /mi

Average Pace

7:41 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:39

82% of race

Time at Steady Pace

35:48

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:41 /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 mi10:51:4223:487:4023:48
7:40
#13606
10K
6.21 mi11:15:2447:307:3923:42
7:38
#13441
15K
9.32 mi11:39:001:11:067:3823:36
7:36
#13119
20K
12.43 mi12:02:421:34:487:3823:42
7:38
#12733
Half
13.11 mi12:07:491:39:557:375:07
7:30
#12682
25K
15.53 mi12:26:141:58:207:3718:25
7:36
#12343
30K
18.64 mi12:51:032:23:097:4124:49
7:59
#12072
20M
20.00 mi13:01:302:33:367:4110:27
7:41
#11732
21M
21.00 mi13:09:362:41:427:428:06
8:06
#11464
35K
21.75 mi13:15:162:47:227:425:40
7:34
#11359
23M
23.00 mi13:25:002:57:067:429:44
7:46
#11130
24M
24.00 mi13:32:333:04:397:427:33
7:33
#10960
40K
24.85 mi13:39:073:11:137:426:34
7:41
#10817
25.2M
25.20 mi13:42:003:14:067:422:53
8:22
#10757
Finish
26.22 mi13:49:213:21:277:417:21
7:13
#10576
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi136063654365412571(Top 44%)3198(Top 26%)3198(Top 176%)
10K6.21 mi3.10 mi13441+1653611+433611+4313271(Top 47%)3535(Top 29%)3535(Top 195%)
15K9.32 mi3.11 mi13119+3223460+1513460+15112571(Top 44%)3198(Top 26%)3198(Top 176%)
20K12.43 mi3.11 mi12733+3863291+1693291+16911803(Top 42%)2890(Top 24%)2890(Top 159%)
Half13.11 mi0.68 mi12682+513263+283263+2811745(Top 41%)2784(Top 23%)2784(Top 154%)
25K15.53 mi2.42 mi12343+3393100+1633100+16310741(Top 38%)2454(Top 20%)2454(Top 135%)
30K18.64 mi3.11 mi12072+2713030+703030+7011291(Top 40%)2923(Top 24%)2923(Top 161%)
20M20.00 mi1.36 mi11732+3402889+1412889+1418321(Top 29%)1685(Top 14%)1685(Top 93%)
21M21.00 mi1.00 mi11464+2682796+932796+937998(Top 28%)1737(Top 14%)1737(Top 96%)
35K21.75 mi0.75 mi11359+1052763+332763+339212(Top 32%)2234(Top 18%)2234(Top 123%)
23M23.00 mi1.25 mi11130+2292682+812682+818437(Top 30%)2015(Top 16%)2015(Top 111%)
24M24.00 mi1.00 mi10960+1702635+472635+478087(Top 28%)1908(Top 16%)1908(Top 105%)
40K24.85 mi0.85 mi10817+1432595+402595+408001(Top 28%)1993(Top 16%)1993(Top 110%)
25.2M25.20 mi0.35 mi10757+602569+262569+268042(Top 28%)2100(Top 17%)2100(Top 116%)
Finish26.22 mi1.02 mi10576+1812509+602509+607158(Top 25%)1717(Top 14%)1717(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

12571

Females

3198

F45-49

3198

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

13271

Females

3535

F45-49

3535

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

12571

Females

3198

F45-49

3198

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11803

Females

2890

F45-49

2890

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11745

Females

2784

F45-49

2784

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10741

Females

2454

F45-49

2454

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11291

Females

2923

F45-49

2923

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

8321

Females

1685

F45-49

1685

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7998

Females

1737

F45-49

1737

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

9212

Females

2234

F45-49

2234

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8437

Females

2015

F45-49

2015

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

8087

Females

1908

F45-49

1908

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

8001

Females

1993

F45-49

1993

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

8042

Females

2100

F45-49

2100

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2story building
+22ft-21ft

Overall

7158

Females

1717

F45-49

1717

Passing Analysis

Category:
Athletes Passed
3573
Passed By
543
Net Change
+3030
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13606
5K → 10K371206+165#13606#13441
10K → 15K38967+322#13441#13119
15K → 20K43246+386#13119#12733
20K → Half6413+51#12733#12682
Half → 25K35718+339#12682#12343
25K → 30K372101+271#12343#12072
30K → 20M3466+340#12072#11732
20M → 21M27911+268#11732#11464
21M → 35K11914+105#11464#11359
35K → 23M24112+229#11359#11130
23M → 24M18111+170#11130#10960
24M → 40K15714+143#10960#10817
40K → 25.2M655+60#10817#10757
25.2M → Finish20019+181#10757#10576
TOTALS3573543+3030
📊

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