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BOSTON MARATHON 2025

Haley Greenslade

Bib: 17013•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 34%
Gender (Female)
#0 / 12228
Top 17%
Division (F18-39)
#0 / 5469
Top 30%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:54
Rank: #11064
Start → 5K
22:54 | 7:22/mi
10K· 6.21 mi
45:32
Rank: #10578 (+486)
5K → 10K
22:38 | 7:17/mi
15K· 9.32 mi
1:08:28
Rank: #10611 (-33)
10K → 15K
22:56 | 7:23/mi
20K· 12.43 mi
1:31:25
Rank: #10364 (+247)
15K → 20K
22:57 | 7:23/mi
Half· 13.11 mi
1:36:17
Rank: #10253 (+111)
20K → Half
4:52 | 7:08/mi
25K· 15.53 mi
1:54:27
Rank: #10165 (+88)
Half → 25K
18:10 | 7:30/mi
30K· 18.64 mi
2:18:49
Rank: #10118 (+47)
25K → 30K
24:22 | 7:51/mi
20M
2:29:45
Rank: #10124 (-6)
30K → 20M
10:56 | 8:03/mi
21M
2:38:24
Rank: #10188 (-64)
20M → 21M
8:39 | 8:39/mi
35K· 21.75 mi
2:44:06
Rank: #10139 (+49)
21M → 35K
5:42 | 7:37/mi
23M
2:54:04
Rank: #10085 (+54)
35K → 23M
9:58 | 7:58/mi
24M
3:01:33
Rank: #9921 (+164)
23M → 24M
7:29 | 7:29/mi
40K· 24.85 mi
3:08:07
Rank: #9816 (+105)
24M → 40K
6:34 | 7:41/mi
25.2M
3:10:57
Rank: #9752 (+64)
40K → 25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
3:18:24
Rank: #9643 (+109)
25.2M → Finish
7:27 | 7:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:17
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:42:07
Pace7:47 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:0322:547:2222:54
7:22
-
10K
6.21 mi11:35:4145:327:2022:38
7:17
-0:05
15K
9.32 mi11:58:371:08:287:2122:56
7:23
+0:06
20K
12.43 mi12:21:341:31:257:2122:57
7:23
0:00
Half
13.11 mi12:26:261:36:177:214:52
7:08
-0:15
25K
15.53 mi12:44:361:54:277:2218:10
7:30
+0:22
30K
18.64 mi13:08:582:18:497:2724:22
7:51
+0:21
20M
20.00 mi13:19:542:29:457:2910:56
8:03
+0:12
21M
21.00 mi13:28:332:38:247:338:39
8:39
+0:36
35K
21.75 mi13:34:152:44:067:335:42
7:37
-1:02
23M
23.00 mi13:44:132:54:047:349:58
7:58
+0:21
24M
24.00 mi13:51:423:01:337:347:29
7:29
-0:29
40K
24.85 mi13:58:163:08:077:346:34
7:41
+0:12
25.2M
25.20 mi14:01:063:10:577:352:50
8:13
+0:32
Finish
26.22 mi14:08:333:18:247:347:27
7:19
-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

7:08 /mi

Average Pace

7:34 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

27:30

14% of race

Time at Steady Pace

1:54:09

58% of race

Time at Slower Pace

56:45

29% of race

Average Pace: 7:34 /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 mi11:13:0322:547:2222:54
7:22
#11064
10K
6.21 mi11:35:4145:327:2022:38
7:17
#10578
15K
9.32 mi11:58:371:08:287:2122:56
7:23
#10611
20K
12.43 mi12:21:341:31:257:2122:57
7:23
#10364
Half
13.11 mi12:26:261:36:177:214:52
7:08
#10253
25K
15.53 mi12:44:361:54:277:2218:10
7:30
#10165
30K
18.64 mi13:08:582:18:497:2724:22
7:51
#10118
20M
20.00 mi13:19:542:29:457:2910:56
8:03
#10124
21M
21.00 mi13:28:332:38:247:338:39
8:39
#10188
35K
21.75 mi13:34:152:44:067:335:42
7:37
#10139
23M
23.00 mi13:44:132:54:047:349:58
7:58
#10085
24M
24.00 mi13:51:423:01:337:347:29
7:29
#9921
40K
24.85 mi13:58:163:08:077:346:34
7:41
#9816
25.2M
25.20 mi14:01:063:10:577:352:50
8:13
#9752
Finish
26.22 mi14:08:333:18:247:347:27
7:19
#9643
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi110642316231610708(Top 38%)2223(Top 18%)2223(Top 41%)
10K6.21 mi3.10 mi10578+4862093+2232093+22310240(Top 36%)1933(Top 16%)1933(Top 35%)
15K9.32 mi3.11 mi10611-332133-402133-4010708(Top 38%)2223(Top 18%)2223(Top 41%)
20K12.43 mi3.11 mi10364+2472037+962037+969806(Top 35%)1877(Top 15%)1877(Top 34%)
Half13.11 mi0.68 mi10253+1111993+441993+448633(Top 30%)1354(Top 11%)1354(Top 25%)
25K15.53 mi2.42 mi10165+881988+51988+59914(Top 35%)2069(Top 17%)2069(Top 38%)
30K18.64 mi3.11 mi10118+472020-322020-3210246(Top 36%)2405(Top 20%)2405(Top 44%)
20M20.00 mi1.36 mi10124-62046-262046-2610753(Top 38%)2800(Top 23%)2800(Top 51%)
21M21.00 mi1.00 mi10188-642136-902136-9011378(Top 40%)3279(Top 27%)3279(Top 60%)
35K21.75 mi0.75 mi10139+492132+42132+49502(Top 33%)2357(Top 19%)2357(Top 43%)
23M23.00 mi1.25 mi10085+542145-132145-139758(Top 34%)2614(Top 21%)2614(Top 48%)
24M24.00 mi1.00 mi9921+1642101+442101+447606(Top 27%)1712(Top 14%)1712(Top 31%)
40K24.85 mi0.85 mi9816+1052089+122089+127995(Top 28%)1987(Top 16%)1987(Top 36%)
25.2M25.20 mi0.35 mi9752+642074+152074+157244(Top 26%)1760(Top 14%)1760(Top 32%)
Finish26.22 mi1.02 mi9643+1092071+32071+37882(Top 28%)2023(Top 17%)2023(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10708

Females

2223

F18-39

2223

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

10240

Females

1933

F18-39

1933

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10708

Females

2223

F18-39

2223

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

9806

Females

1877

F18-39

1877

20K→Half

12.4 - 13.1 mi

Top 30%
×2stories
+19ft-37ft

Overall

8633

Females

1354

F18-39

1354

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9914

Females

2069

F18-39

2069

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

10246

Females

2405

F18-39

2405

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10753

Females

2800

F18-39

2800

20M→21M

20.0 - 21.0 mi

Top 40%
×8stories
+106ft-24ft

Overall

11378

Females

3279

F18-39

3279

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

9502

Females

2357

F18-39

2357

35K→23M

21.8 - 23.0 mi

Top 34%
×5stories
+23ft-63ft

Overall

9758

Females

2614

F18-39

2614

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7606

Females

1712

F18-39

1712

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7995

Females

1987

F18-39

1987

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7244

Females

1760

F18-39

1760

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7882

Females

2023

F18-39

2023

Passing Analysis

Category:
Athletes Passed
2523*
Passed By
1099
Net Change
+1421
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11064
5K → 10K57690+486#11064#10578
10K → 15K157190-33#10578#10611
15K → 20K29952+247#10611#10364
20K → Half1143+111#10364#10253
Half → 25K193105+88#10253#10165
25K → 30K257209+47#10165#10118
30K → 20M118124-6#10118#10124
20M → 21M86149-64#10124#10188
21M → 35K8435+49#10188#10139
35K → 23M12874+54#10139#10085
23M → 24M175*11+164#10085#9921
24M → 40K12923+105#9921#9816
40K → 25.2M728+64#9816#9752
25.2M → Finish13526+109#9752#9643
TOTALS2523*1099+1421

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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