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BOSTON MARATHON 2025

Susan Gannon

Bib: 19598 F IE

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 40%
Masters (Masters Women)
#0 / 6759
Top 26%
Division (F40-44)
#0 / 1718
Top 50%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:48/mi
24:14
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:48/mi
48:29
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:53/mi
1:12:58
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:10/mi
1:38:19
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:01/mi
1:43:47
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:20/mi
2:04:00
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:49/mi
2:31:24
↑ 181↓ 1480.2%
138 ft elev
20M
8:43/mi
2:43:15
↑ 64↓ 500.2%
148 ft elev
21M
9:10/mi
2:52:25
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:20/mi
2:58:39
↑ 17↓ 861.7%
156 ft elev
23M
8:43/mi
3:09:34
↑ 23↓ 630.6%
116 ft elev
24M
8:34/mi
3:18:08
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:39/mi
3:25:32
↓ 200.3%
20 ft elev
25.2M
9:17/mi
3:28:44
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:03/mi
3:36:56
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:47
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time1:53:09
Pace8:38 /mi
📊Positive Split: 9.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:1624:147:4824:14
7:48
-
10K
6.21 mi11:40:3148:297:4824:15
7:48
0:00
15K
9.32 mi12:05:001:12:587:5024:29
7:53
+0:05
20K
12.43 mi12:30:211:38:197:5525:21
8:10
+0:17
Half
13.11 mi12:35:491:43:477:555:28
8:01
-0:09
25K
15.53 mi12:56:022:04:007:5920:13
8:20
+0:19
30K
18.64 mi13:23:262:31:248:0727:24
8:49
+0:29
20M
20.00 mi13:35:172:43:158:1011:51
8:43
-0:06
21M
21.00 mi13:44:272:52:258:139:10
9:10
+0:27
35K
21.75 mi13:50:412:58:398:136:14
8:20
-0:50
23M
23.00 mi14:01:363:09:348:1510:55
8:43
+0:23
24M
24.00 mi14:10:103:18:088:158:34
8:34
-0:09
40K
24.85 mi14:17:343:25:328:167:24
8:39
+0:05
25.2M
25.20 mi14:20:463:28:448:173:12
9:17
+0:38
Finish
26.22 mi14:28:583:36:568:178:12
8:03
-1:14

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

8:17 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:00

68% of race

Time at Steady Pace

1:06:44

31% of race

Time at Slower Pace

3:12

1% of race

Average Pace: 8:16 /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 mi11:16:1624:147:4824:14
7:48
#14826
10K
6.21 mi11:40:3148:297:4824:15
7:48
#14818
15K
9.32 mi12:05:001:12:587:5024:29
7:53
#14889
20K
12.43 mi12:30:211:38:197:5525:21
8:10
#15206
Half
13.11 mi12:35:491:43:477:555:28
8:01
#15245
25K
15.53 mi12:56:022:04:007:5920:13
8:20
#15406
30K
18.64 mi13:23:262:31:248:0727:24
8:49
#15672
20M
20.00 mi13:35:172:43:158:1011:51
8:43
#15575
21M
21.00 mi13:44:272:52:258:139:10
9:10
#15467
35K
21.75 mi13:50:412:58:398:136:14
8:20
#15417
23M
23.00 mi14:01:363:09:348:1510:55
8:43
#15330
24M
24.00 mi14:10:103:18:088:158:34
8:34
#15292
40K
24.85 mi14:17:343:25:328:167:24
8:39
#15238
25.2M
25.20 mi14:20:463:28:448:173:12
9:17
#15207
Finish
26.22 mi14:28:583:36:568:178:12
8:03
#15085
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi148264423442315103(Top 53%)4643(Top 38%)4643(Top 270%)
10K6.21 mi3.10 mi14818+84440-174440-1714883(Top 52%)4471(Top 37%)4471(Top 260%)
15K9.32 mi3.11 mi14889-714492-524492-5215103(Top 53%)4643(Top 38%)4643(Top 270%)
20K12.43 mi3.11 mi15206-3174701-2094701-20916053(Top 57%)5246(Top 43%)5246(Top 305%)
Half13.11 mi0.68 mi15245-394718-174718-1716047(Top 56%)5208(Top 43%)5208(Top 303%)
25K15.53 mi2.42 mi15406-1614835-1174835-11716170(Top 57%)5407(Top 44%)5407(Top 315%)
30K18.64 mi3.11 mi15672-2665034-1995034-19916716(Top 59%)5868(Top 48%)5868(Top 342%)
20M20.00 mi1.36 mi15575+975017+175017+1715203(Top 54%)5153(Top 42%)5153(Top 300%)
21M21.00 mi1.00 mi15467+1084995+224995+2214453(Top 51%)4865(Top 40%)4865(Top 283%)
35K21.75 mi0.75 mi15417+504984+114984+1114512(Top 51%)4966(Top 41%)4966(Top 289%)
23M23.00 mi1.25 mi15330+874971+134971+1314673(Top 52%)5159(Top 42%)5159(Top 300%)
24M24.00 mi1.00 mi15292+384975-44975-414958(Top 53%)5353(Top 44%)5353(Top 312%)
40K24.85 mi0.85 mi15238+544980-54980-514395(Top 51%)5187(Top 42%)5187(Top 302%)
25.2M25.20 mi0.35 mi15207+314974+64974+613414(Top 47%)4723(Top 39%)4723(Top 275%)
Finish26.22 mi1.02 mi15085+1224924+504924+5013229(Top 47%)4569(Top 37%)4569(Top 266%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

15103

Females

4643

F40-44

4643

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

14883

Females

4471

F40-44

4471

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

15103

Females

4643

F40-44

4643

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

16053

Females

5246

F40-44

5246

20K→Half

12.4 - 13.1 mi

Top 56%
×2story building
+19ft-37ft

Overall

16047

Females

5208

F40-44

5208

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

16170

Females

5407

F40-44

5407

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

16716

Females

5868

F40-44

5868

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

15203

Females

5153

F40-44

5153

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

14453

Females

4865

F40-44

4865

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

14512

Females

4966

F40-44

4966

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

14673

Females

5159

F40-44

5159

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

14958

Females

5353

F40-44

5353

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14395

Females

5187

F40-44

5187

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13414

Females

4723

F40-44

4723

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

13229

Females

4569

F40-44

4569

Passing Analysis

Category:
Athletes Passed
1836
Passed By
2095
Net Change
-259
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14826
5K → 10K289281+8#14826#14818
10K → 15K168239-71#14818#14889
15K → 20K130447-317#14889#15206
20K → Half2867-39#15206#15245
Half → 25K124285-161#15245#15406
25K → 30K163429-266#15406#15672
30K → 20M16366+97#15672#15575
20M → 21M16860+108#15575#15467
21M → 35K8030+50#15467#15417
35K → 23M15164+87#15417#15330
23M → 24M8749+38#15330#15292
24M → 40K9642+54#15292#15238
40K → 25.2M4716+31#15238#15207
25.2M → Finish14220+122#15207#15085
TOTALS18362095-259
📊

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