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BOSTON MARATHON 2025

Delaney Gibbons

Bib: 18428•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 41%
Gender (Female)
#0 / 12228
Top 25%
Division (F18-39)
#0 / 5469
Top 43%
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
7:48/mi
24:15
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
48:17
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:12:15
↑ 67↓ 78
20K· 12.43 mi
7:35/mi
1:35:49
↑ 106↓ 860.1%
Half· 13.11 mi
7:27/mi
1:40:54
↑ 19↓ 370.5%
25K· 15.53 mi
7:34/mi
1:59:15
↑ 66↓ 880.2%
30K· 18.64 mi
7:45/mi
2:23:19
↑ 181↓ 1480.2%
20M
7:58/mi
2:34:08
↑ 64↓ 500.2%
21M
8:18/mi
2:42:26
↑ 106↓ 241.6%
35K· 21.75 mi
7:38/mi
2:48:09
↑ 17↓ 861.7%
23M
8:14/mi
2:58:28
↑ 23↓ 630.6%
24M
8:20/mi
3:06:48
↓ 821.3%
40K· 24.85 mi
8:40/mi
3:14:13
↓ 200.3%
25.2M
8:51/mi
3:17:16
↑ 13↓ 160.2%
Finish· 26.22 mi
7:40/mi
3:25:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:54
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:44:11
Pace7:57 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:0124:157:4824:15
7:48
-
10K
6.21 mi11:39:0348:177:4624:02
7:44
-0:04
15K
9.32 mi12:03:011:12:157:4523:58
7:43
-0:01
20K
12.43 mi12:26:351:35:497:4323:34
7:35
-0:08
Half
13.11 mi12:31:401:40:547:425:05
7:27
-0:08
25K
15.53 mi12:50:011:59:157:4118:21
7:34
+0:07
30K
18.64 mi13:14:052:23:197:4124:04
7:45
+0:11
20M
20.00 mi13:24:542:34:087:4210:49
7:58
+0:13
21M
21.00 mi13:33:122:42:267:448:18
8:18
+0:20
35K
21.75 mi13:38:552:48:097:445:43
7:38
-0:40
23M
23.00 mi13:49:142:58:287:4610:19
8:14
+0:36
24M
24.00 mi13:57:343:06:487:478:20
8:20
+0:06
40K
24.85 mi14:04:593:14:137:497:25
8:40
+0:20
25.2M
25.20 mi14:08:023:17:167:503:03
8:51
+0:11
Finish
26.22 mi14:15:513:25:057:507:49
7:40
-1:11

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

7:27 /mi

Average Pace

7:50 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:40

82% of race

Time at Steady Pace

34:22

17% of race

Time at Slower Pace

3:03

1% of race

Average Pace: 7:49 /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 mi11:15:0124:157:4824:15
7:48
#14864
10K
6.21 mi11:39:0348:177:4624:02
7:44
#14501
15K
9.32 mi12:03:011:12:157:4523:58
7:43
#14212
20K
12.43 mi12:26:351:35:497:4323:34
7:35
#13457
Half
13.11 mi12:31:401:40:547:425:05
7:27
#13338
25K
15.53 mi12:50:011:59:157:4118:21
7:34
#12814
30K
18.64 mi13:14:052:23:197:4124:04
7:45
#12162
20M
20.00 mi13:24:542:34:087:4210:49
7:58
#11975
21M
21.00 mi13:33:122:42:267:448:18
8:18
#11770
35K
21.75 mi13:38:552:48:097:445:43
7:38
#11672
23M
23.00 mi13:49:142:58:287:4610:19
8:14
#11645
24M
24.00 mi13:57:343:06:487:478:20
8:20
#11715
40K
24.85 mi14:04:593:14:137:497:25
8:40
#11805
25.2M
25.20 mi14:08:023:17:167:503:03
8:51
#11793
Finish
26.22 mi14:15:513:25:057:507:49
7:40
#11710
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi148644436443613643(Top 48%)3806(Top 31%)3806(Top 70%)
10K6.21 mi3.10 mi14501+3634234+2024234+20214210(Top 50%)4081(Top 33%)4081(Top 75%)
15K9.32 mi3.11 mi14212+2894091+1434091+14313643(Top 48%)3806(Top 31%)3806(Top 70%)
20K12.43 mi3.11 mi13457+7553696+3953696+39511487(Top 40%)2736(Top 22%)2736(Top 50%)
Half13.11 mi0.68 mi13338+1193632+643632+6411402(Top 40%)2647(Top 22%)2647(Top 48%)
25K15.53 mi2.42 mi12814+5243370+2623370+26210525(Top 37%)2342(Top 19%)2342(Top 43%)
30K18.64 mi3.11 mi12162+6523079+2913079+2919543(Top 34%)2073(Top 17%)2073(Top 38%)
20M20.00 mi1.36 mi11975+1873019+603019+6010210(Top 36%)2547(Top 21%)2547(Top 47%)
21M21.00 mi1.00 mi11770+2052948+712948+719261(Top 33%)2285(Top 19%)2285(Top 42%)
35K21.75 mi0.75 mi11672+982919+292919+299696(Top 34%)2471(Top 20%)2471(Top 45%)
23M23.00 mi1.25 mi11645+272951-322951-3211662(Top 41%)3560(Top 29%)3560(Top 65%)
24M24.00 mi1.00 mi11715-703032-813032-8113486(Top 47%)4552(Top 37%)4552(Top 83%)
40K24.85 mi0.85 mi11805-903104-723104-7214472(Top 51%)5217(Top 43%)5217(Top 95%)
25.2M25.20 mi0.35 mi11793+123117-133117-1310974(Top 39%)3468(Top 28%)3468(Top 63%)
Finish26.22 mi1.02 mi11710+833114+33114+310504(Top 37%)3219(Top 26%)3219(Top 59%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

13643

Females

3806

F18-39

3806

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

14210

Females

4081

F18-39

4081

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

13643

Females

3806

F18-39

3806

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11487

Females

2736

F18-39

2736

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

11402

Females

2647

F18-39

2647

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

10525

Females

2342

F18-39

2342

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9543

Females

2073

F18-39

2073

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

10210

Females

2547

F18-39

2547

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

9261

Females

2285

F18-39

2285

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

9696

Females

2471

F18-39

2471

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

11662

Females

3560

F18-39

3560

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

13486

Females

4552

F18-39

4552

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14472

Females

5217

F18-39

5217

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10974

Females

3468

F18-39

3468

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

10504

Females

3219

F18-39

3219

Passing Analysis

Category:
Athletes Passed
3917
Passed By
763
Net Change
+3154
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14864
5K → 10K508145+363#14864#14501
10K → 15K36374+289#14501#14212
15K → 20K7583+755#14212#13457
20K → Half1245+119#13457#13338
Half → 25K5339+524#13338#12814
25K → 30K66917+652#12814#12162
30K → 20M21427+187#12162#11975
20M → 21M22722+205#11975#11770
21M → 35K11820+98#11770#11672
35K → 23M12194+27#11672#11645
23M → 24M60130-70#11645#11715
24M → 40K55145-90#11715#11805
40K → 25.2M4331+12#11805#11793
25.2M → Finish12441+83#11793#11710
TOTALS3917763+3154
📊

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