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BOSTON MARATHON 2025

Halee Merrill

Bib: 12227•F

AZ

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 26%
Gender (Female)
#0 / 12228
Top 9%
Division (F18-39)
#0 / 5469
Top 17%
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
7:07/mi
22:06
↑ 97↓ 3451.5%
10K· 6.21 mi
7:09/mi
44:18
↑ 79↓ 1380.4%
15K· 9.32 mi
7:02/mi
1:06:09
↑ 67↓ 78
20K· 12.43 mi
7:07/mi
1:28:16
↑ 106↓ 860.1%
Half· 13.11 mi
7:02/mi
1:33:04
↑ 19↓ 370.5%
25K· 15.53 mi
7:18/mi
1:50:45
↑ 66↓ 880.2%
30K· 18.64 mi
7:30/mi
2:14:03
↑ 181↓ 1480.2%
20M
7:35/mi
2:24:21
↑ 64↓ 500.2%
21M
8:05/mi
2:32:26
↑ 106↓ 241.6%
35K· 21.75 mi
7:34/mi
2:38:06
↑ 17↓ 861.7%
23M
7:40/mi
2:47:42
↑ 23↓ 630.6%
24M
7:17/mi
2:54:59
↓ 821.3%
40K· 24.85 mi
7:36/mi
3:01:29
↓ 200.3%
25.2M
8:10/mi
3:04:18
↑ 13↓ 160.2%
Finish· 26.22 mi
6:37/mi
3:11:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:04
Pace7:06 /mi
2nd Half
Distance13.11 mi
Time1:37:59
Pace7:28 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4022:067:0722:06
7:07
-
10K
6.21 mi11:14:5244:187:0822:12
7:09
+0:02
15K
9.32 mi11:36:431:06:097:0621:51
7:02
-0:07
20K
12.43 mi11:58:501:28:167:0622:07
7:07
+0:05
Half
13.11 mi12:03:381:33:047:064:48
7:02
-0:05
25K
15.53 mi12:21:191:50:457:0817:41
7:18
+0:16
30K
18.64 mi12:44:372:14:037:1123:18
7:30
+0:12
20M
20.00 mi12:54:552:24:217:1310:18
7:35
+0:05
21M
21.00 mi13:03:002:32:267:168:05
8:05
+0:30
35K
21.75 mi13:08:402:38:067:165:40
7:34
-0:31
23M
23.00 mi13:18:162:47:427:179:36
7:40
+0:06
24M
24.00 mi13:25:332:54:597:177:17
7:17
-0:23
40K
24.85 mi13:32:033:01:297:186:30
7:36
+0:19
25.2M
25.20 mi13:34:523:04:187:192:49
8:10
+0:34
Finish
26.22 mi13:41:373:11:037:186:45
6:37
-1:33

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

6:37 /mi

Average Pace

7:18 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

33:24

17% of race

Time at Steady Pace

1:31:23

48% of race

Time at Slower Pace

1:06:16

35% of race

Average Pace: 7:17 /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 mi10:52:4022:067:0722:06
7:07
#8774
10K
6.21 mi11:14:5244:187:0822:12
7:09
#8869
15K
9.32 mi11:36:431:06:097:0621:51
7:02
#8452
20K
12.43 mi11:58:501:28:167:0622:07
7:07
#8203
Half
13.11 mi12:03:381:33:047:064:48
7:02
#8164
25K
15.53 mi12:21:191:50:457:0817:41
7:18
#8140
30K
18.64 mi12:44:372:14:037:1123:18
7:30
#7967
20M
20.00 mi12:54:552:24:217:1310:18
7:35
#7882
21M
21.00 mi13:03:002:32:267:168:05
8:05
#7816
35K
21.75 mi13:08:402:38:067:165:40
7:34
#7827
23M
23.00 mi13:18:162:47:427:179:36
7:40
#7747
24M
24.00 mi13:25:332:54:597:177:17
7:17
#7651
40K
24.85 mi13:32:033:01:297:186:30
7:36
#7597
25.2M
25.20 mi13:34:523:04:187:192:49
8:10
#7574
Finish
26.22 mi13:41:373:11:037:186:45
6:37
#7342
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8774127212727848(Top 28%)986(Top 8%)986(Top 18%)
10K6.21 mi3.10 mi8869-951329-571329-579048(Top 32%)1393(Top 11%)1393(Top 25%)
15K9.32 mi3.11 mi8452+4171179+1501179+1507848(Top 28%)986(Top 8%)986(Top 18%)
20K12.43 mi3.11 mi8203+2491105+741105+747644(Top 27%)985(Top 8%)985(Top 18%)
Half13.11 mi0.68 mi8164+391094+111094+117891(Top 28%)1050(Top 9%)1050(Top 19%)
25K15.53 mi2.42 mi8140+241108-141108-148323(Top 29%)1347(Top 11%)1347(Top 25%)
30K18.64 mi3.11 mi7967+1731096+121096+127743(Top 27%)1288(Top 11%)1288(Top 24%)
20M20.00 mi1.36 mi7882+851100-41100-47555(Top 27%)1356(Top 11%)1356(Top 25%)
21M21.00 mi1.00 mi7816+661103-31103-37862(Top 28%)1659(Top 14%)1659(Top 30%)
35K21.75 mi0.75 mi7827-111130-271130-279166(Top 32%)2188(Top 18%)2188(Top 40%)
23M23.00 mi1.25 mi7747+801149-191149-197709(Top 27%)1687(Top 14%)1687(Top 31%)
24M24.00 mi1.00 mi7651+961148+11148+16339(Top 22%)1197(Top 10%)1197(Top 22%)
40K24.85 mi0.85 mi7597+541160-121160-127450(Top 26%)1728(Top 14%)1728(Top 32%)
25.2M25.20 mi0.35 mi7574+231170-101170-106907(Top 24%)1579(Top 13%)1579(Top 29%)
Finish26.22 mi1.02 mi7342+2321106+641106+643508(Top 12%)436(Top 4%)436(Top 8%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7848

Females

986

F18-39

986

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

9048

Females

1393

F18-39

1393

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7848

Females

986

F18-39

986

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7644

Females

985

F18-39

985

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

7891

Females

1050

F18-39

1050

Half→25K

13.1 - 15.5 mi

Top 29%
×4story building
+66ft-88ft

Overall

8323

Females

1347

F18-39

1347

25K→30K

15.5 - 18.6 mi

Top 27%
×9story building
+181ft-148ft

Overall

7743

Females

1288

F18-39

1288

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

7555

Females

1356

F18-39

1356

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7862

Females

1659

F18-39

1659

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

9166

Females

2188

F18-39

2188

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7709

Females

1687

F18-39

1687

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

6339

Females

1197

F18-39

1197

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7450

Females

1728

F18-39

1728

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6907

Females

1579

F18-39

1579

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2story building
+22ft-21ft

Overall

3508

Females

436

F18-39

436

Passing Analysis

Category:
Athletes Passed
2293
Passed By
861
Net Change
+1432
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8774
5K → 10K162257-95#8774#8869
10K → 15K44124+417#8869#8452
15K → 20K29647+249#8452#8203
20K → Half478+39#8203#8164
Half → 25K145121+24#8164#8140
25K → 30K26390+173#8140#7967
30K → 20M13247+85#7967#7882
20M → 21M12862+66#7882#7816
21M → 35K5869-11#7816#7827
35K → 23M13555+80#7827#7747
23M → 24M11418+96#7747#7651
24M → 40K9743+54#7651#7597
40K → 25.2M4320+23#7597#7574
25.2M → Finish2320+232#7574#7342
TOTALS2293861+1432
📊

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