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BOSTON MARATHON 2025

Millicent Sullivan

Bib: 21141•F

DE

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 41%
Masters (Masters Women)
#0 / 6759
Top 27%
Division (F45-49)
#0 / 1813
Top 32%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:10
Rank: #14638
Start → 5K
24:10 | 7:47/mi
10K· 6.21 mi
48:26
Rank: #14753 (-115)
5K → 10K
24:16 | 7:49/mi
15K· 9.32 mi
1:12:56
Rank: #14857 (-104)
10K → 15K
24:30 | 7:53/mi
20K· 12.43 mi
1:37:53
Rank: #14890 (-33)
15K → 20K
24:57 | 8:02/mi
Half· 13.11 mi
1:43:16
Rank: #14898 (-8)
20K → Half
5:23 | 7:53/mi
25K· 15.53 mi
2:03:21
Rank: #15091 (-193)
Half → 25K
20:05 | 8:17/mi
30K· 18.64 mi
2:30:12
Rank: #15200 (-109)
25K → 30K
26:51 | 8:39/mi
20M
2:42:15
Rank: #15242 (-42)
30K → 20M
12:03 | 8:52/mi
21M
2:51:44
Rank: #15234 (+8)
20M → 21M
9:29 | 9:29/mi
35K· 21.75 mi
2:58:18
Rank: #15294 (-60)
21M → 35K
6:34 | 8:47/mi
23M
3:09:35
Rank: #15337 (-43)
35K → 23M
11:17 | 9:01/mi
24M
3:18:07
Rank: #15286 (+51)
23M → 24M
8:32 | 8:32/mi
40K· 24.85 mi
3:25:32
Rank: #15239 (+47)
24M → 40K
7:25 | 8:40/mi
25.2M
3:28:53
Rank: #15252 (-13)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:37:26
Rank: #15251 (+1)
25.2M → Finish
8:33 | 8:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:16
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:54:10
Pace8:43 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:1124:107:4724:10
7:47
-
10K
6.21 mi11:41:2748:267:4824:16
7:49
+0:02
15K
9.32 mi12:05:571:12:567:4924:30
7:53
+0:04
20K
12.43 mi12:30:541:37:537:5324:57
8:02
+0:09
Half
13.11 mi12:36:171:43:167:535:23
7:53
-0:09
25K
15.53 mi12:56:222:03:217:5620:05
8:17
+0:24
30K
18.64 mi13:23:132:30:128:0326:51
8:39
+0:22
20M
20.00 mi13:35:162:42:158:0712:03
8:52
+0:13
21M
21.00 mi13:44:452:51:448:119:29
9:29
+0:37
35K
21.75 mi13:51:192:58:188:126:34
8:47
-0:42
23M
23.00 mi14:02:363:09:358:1511:17
9:01
+0:14
24M
24.00 mi14:11:083:18:078:158:32
8:32
-0:29
40K
24.85 mi14:18:333:25:328:167:25
8:40
+0:08
25.2M
25.20 mi14:21:543:28:538:173:21
9:43
+1:03
Finish
26.22 mi14:30:273:37:268:188:33
8:23
-1:20

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

7:47 /mi

Average Pace

8:18 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:16

47% of race

Time at Steady Pace

1:18:00

36% of race

Time at Slower Pace

36:10

17% of race

Average Pace: 8:18 /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 mi11:17:1124:107:4724:10
7:47
#14638
10K
6.21 mi11:41:2748:267:4824:16
7:49
#14753
15K
9.32 mi12:05:571:12:567:4924:30
7:53
#14857
20K
12.43 mi12:30:541:37:537:5324:57
8:02
#14890
Half
13.11 mi12:36:171:43:167:535:23
7:53
#14898
25K
15.53 mi12:56:222:03:217:5620:05
8:17
#15091
30K
18.64 mi13:23:132:30:128:0326:51
8:39
#15200
20M
20.00 mi13:35:162:42:158:0712:03
8:52
#15242
21M
21.00 mi13:44:452:51:448:119:29
9:29
#15234
35K
21.75 mi13:51:192:58:188:126:34
8:47
#15294
23M
23.00 mi14:02:363:09:358:1511:17
9:01
#15337
24M
24.00 mi14:11:083:18:078:158:32
8:32
#15286
40K
24.85 mi14:18:333:25:328:167:25
8:40
#15239
25.2M
25.20 mi14:21:543:28:538:173:21
9:43
#15252
Finish
26.22 mi14:30:273:37:268:188:33
8:23
#15251
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi146384308430815137(Top 53%)4661(Top 38%)4661(Top 257%)
10K6.21 mi3.10 mi14753-1154404-964404-9614940(Top 53%)4499(Top 37%)4499(Top 248%)
15K9.32 mi3.11 mi14857-1044474-704474-7015137(Top 53%)4661(Top 38%)4661(Top 257%)
20K12.43 mi3.11 mi14890-334527-534527-5315160(Top 53%)4727(Top 39%)4727(Top 261%)
Half13.11 mi0.68 mi14898-84534-74534-715091(Top 53%)4674(Top 38%)4674(Top 258%)
25K15.53 mi2.42 mi15091-1934658-1244658-12415815(Top 56%)5203(Top 43%)5203(Top 287%)
30K18.64 mi3.11 mi15200-1094774-1164774-11615653(Top 55%)5256(Top 43%)5256(Top 290%)
20M20.00 mi1.36 mi15242-424830-564830-5616051(Top 57%)5619(Top 46%)5619(Top 310%)
21M21.00 mi1.00 mi15234+84860-304860-3016012(Top 56%)5708(Top 47%)5708(Top 315%)
35K21.75 mi0.75 mi15294-604905-454905-4517138(Top 60%)6417(Top 52%)6417(Top 354%)
23M23.00 mi1.25 mi15337-434975-704975-7016334(Top 58%)6071(Top 50%)6071(Top 335%)
24M24.00 mi1.00 mi15286+514970+54970+514752(Top 52%)5240(Top 43%)5240(Top 289%)
40K24.85 mi0.85 mi15239+474981-114981-1114496(Top 51%)5241(Top 43%)5241(Top 289%)
25.2M25.20 mi0.35 mi15252-135003-225003-2215715(Top 55%)5926(Top 48%)5926(Top 327%)
Finish26.22 mi1.02 mi15251+15016-135016-1315528(Top 55%)5768(Top 47%)5768(Top 318%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

15137

Females

4661

F45-49

4661

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

14940

Females

4499

F45-49

4499

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

15137

Females

4661

F45-49

4661

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

15160

Females

4727

F45-49

4727

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

15091

Females

4674

F45-49

4674

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

15815

Females

5203

F45-49

5203

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

15653

Females

5256

F45-49

5256

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

16051

Females

5619

F45-49

5619

20M→21M

20.0 - 21.0 mi

Top 56%
×8stories
+106ft-24ft

Overall

16012

Females

5708

F45-49

5708

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

17138

Females

6417

F45-49

6417

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

16334

Females

6071

F45-49

6071

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

14752

Females

5240

F45-49

5240

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14496

Females

5241

F45-49

5241

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15715

Females

5926

F45-49

5926

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

15528

Females

5768

F45-49

5768

Passing Analysis

Category:
Athletes Passed
1599
Passed By
2212
Net Change
-613
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14638
5K → 10K239354-115#14638#14753
10K → 15K149253-104#14753#14857
15K → 20K204237-33#14857#14890
20K → Half2937-8#14890#14898
Half → 25K126319-193#14898#15091
25K → 30K210319-109#15091#15200
30K → 20M106148-42#15200#15242
20M → 21M117109+8#15242#15234
21M → 35K51111-60#15234#15294
35K → 23M95138-43#15294#15337
23M → 24M9241+51#15337#15286
24M → 40K9346+47#15286#15239
40K → 25.2M3144-13#15239#15252
25.2M → Finish5756+1#15252#15251
TOTALS15992212-613
📊

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