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BOSTON MARATHON 2025

Katie Acker

Bib: 11057•F

MI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 31%
Gender (Female)
#0 / 12228
Top 14%
Division (F18-39)
#0 / 5469
Top 25%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:32
Rank: #9930
Start → 5K
22:32 | 7:15/mi
10K· 6.21 mi
45:16
Rank: #10222 (-292)
5K → 10K
22:44 | 7:19/mi
15K· 9.32 mi
1:07:41
Rank: #9875 (+347)
10K → 15K
22:25 | 7:13/mi
20K· 12.43 mi
1:30:32
Rank: #9742 (+133)
15K → 20K
22:51 | 7:21/mi
Half· 13.11 mi
1:35:31
Rank: #9750 (-8)
20K → Half
4:59 | 7:18/mi
25K· 15.53 mi
1:53:24
Rank: #9574 (+176)
Half → 25K
17:53 | 7:23/mi
30K· 18.64 mi
2:16:50
Rank: #9210 (+364)
25K → 30K
23:26 | 7:33/mi
20M
2:27:15
Rank: #9088 (+122)
30K → 20M
10:25 | 7:40/mi
21M
2:35:22
Rank: #8982 (+106)
20M → 21M
8:07 | 8:07/mi
35K· 21.75 mi
2:40:55
Rank: #8900 (+82)
21M → 35K
5:33 | 7:25/mi
23M
2:50:39
Rank: #8803 (+97)
35K → 23M
9:44 | 7:46/mi
24M
2:58:26
Rank: #8840 (-37)
23M → 24M
7:47 | 7:47/mi
40K· 24.85 mi
3:05:07
Rank: #8791 (+49)
24M → 40K
6:41 | 7:49/mi
25.2M
3:08:10
Rank: #8815 (-24)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:15:52
Rank: #8835 (-20)
25.2M → Finish
7:42 | 7:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:31
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:40:21
Pace7:39 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2322:327:1522:32
7:15
-
10K
6.21 mi11:13:0745:167:1722:44
7:19
+0:04
15K
9.32 mi11:35:321:07:417:1622:25
7:13
-0:06
20K
12.43 mi11:58:231:30:327:1722:51
7:21
+0:08
Half
13.11 mi12:03:221:35:317:174:59
7:18
-0:03
25K
15.53 mi12:21:151:53:247:1817:53
7:23
+0:05
30K
18.64 mi12:44:412:16:507:2023:26
7:33
+0:10
20M
20.00 mi12:55:062:27:157:2210:25
7:40
+0:07
21M
21.00 mi13:03:132:35:227:248:07
8:07
+0:27
35K
21.75 mi13:08:462:40:557:245:33
7:25
-0:42
23M
23.00 mi13:18:302:50:397:259:44
7:46
+0:21
24M
24.00 mi13:26:172:58:267:267:47
7:47
+0:01
40K
24.85 mi13:32:583:05:077:276:41
7:49
+0:02
25.2M
25.20 mi13:36:013:08:107:283:03
8:51
+1:02
Finish
26.22 mi13:43:433:15:527:297:42
7:33
-1:18

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

7:13 /mi

Average Pace

7:29 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:12:40

37% of race

Time at Steady Pace

1:27:50

45% of race

Time at Slower Pace

35:22

18% of race

Average Pace: 7:28 /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 mi10:50:2322:327:1522:32
7:15
#9930
10K
6.21 mi11:13:0745:167:1722:44
7:19
#10222
15K
9.32 mi11:35:321:07:417:1622:25
7:13
#9875
20K
12.43 mi11:58:231:30:327:1722:51
7:21
#9742
Half
13.11 mi12:03:221:35:317:174:59
7:18
#9750
25K
15.53 mi12:21:151:53:247:1817:53
7:23
#9574
30K
18.64 mi12:44:412:16:507:2023:26
7:33
#9210
20M
20.00 mi12:55:062:27:157:2210:25
7:40
#9088
21M
21.00 mi13:03:132:35:227:248:07
8:07
#8982
35K
21.75 mi13:08:462:40:557:245:33
7:25
#8900
23M
23.00 mi13:18:302:50:397:259:44
7:46
#8803
24M
24.00 mi13:26:172:58:267:267:47
7:47
#8840
40K
24.85 mi13:32:583:05:077:276:41
7:49
#8791
25.2M
25.20 mi13:36:013:08:107:283:03
8:51
#8815
Finish
26.22 mi13:43:433:15:527:297:42
7:33
#8835
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9930177817789266(Top 33%)1547(Top 13%)1547(Top 28%)
10K6.21 mi3.10 mi10222-2921917-1391917-13910499(Top 37%)2059(Top 17%)2059(Top 38%)
15K9.32 mi3.11 mi9875+3471782+1351782+1359266(Top 33%)1547(Top 13%)1547(Top 28%)
20K12.43 mi3.11 mi9742+1331751+311751+319521(Top 34%)1748(Top 14%)1748(Top 32%)
Half13.11 mi0.68 mi9750-81754-31754-310076(Top 35%)1982(Top 16%)1982(Top 36%)
25K15.53 mi2.42 mi9574+1761712+421712+428980(Top 32%)1631(Top 13%)1631(Top 30%)
30K18.64 mi3.11 mi9210+3641601+1111601+1118059(Top 28%)1416(Top 12%)1416(Top 26%)
20M20.00 mi1.36 mi9088+1221577+241577+248156(Top 29%)1602(Top 13%)1602(Top 29%)
21M21.00 mi1.00 mi8982+1061567+101567+108077(Top 28%)1759(Top 14%)1759(Top 32%)
35K21.75 mi0.75 mi8900+821552+151552+158093(Top 28%)1719(Top 14%)1719(Top 31%)
23M23.00 mi1.25 mi8803+971557-51557-58415(Top 30%)1993(Top 16%)1993(Top 36%)
24M24.00 mi1.00 mi8840-371610-531610-539695(Top 34%)2649(Top 22%)2649(Top 48%)
40K24.85 mi0.85 mi8791+491631-211631-218905(Top 31%)2402(Top 20%)2402(Top 44%)
25.2M25.20 mi0.35 mi8815-241653-221653-2210935(Top 38%)3429(Top 28%)3429(Top 63%)
Finish26.22 mi1.02 mi8835-201700-471700-479614(Top 34%)2808(Top 23%)2808(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

9266

Females

1547

F18-39

1547

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

10499

Females

2059

F18-39

2059

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

9266

Females

1547

F18-39

1547

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9521

Females

1748

F18-39

1748

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

10076

Females

1982

F18-39

1982

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

8980

Females

1631

F18-39

1631

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

8059

Females

1416

F18-39

1416

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

8156

Females

1602

F18-39

1602

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

8077

Females

1759

F18-39

1759

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

8093

Females

1719

F18-39

1719

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8415

Females

1993

F18-39

1993

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9695

Females

2649

F18-39

2649

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8905

Females

2402

F18-39

2402

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10935

Females

3429

F18-39

3429

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9614

Females

2808

F18-39

2808

Passing Analysis

Category:
Athletes Passed
2273*
Passed By
1176
Net Change
+1095
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9930
5K → 10K122412-292#9930#10222
10K → 15K391*44+347#10222#9875
15K → 20K240107+133#9875#9742
20K → Half3341-8#9742#9750
Half → 25K23963+176#9750#9574
25K → 30K41450+364#9574#9210
30K → 20M16543+122#9210#9088
20M → 21M14640+106#9088#8982
21M → 35K10624+82#8982#8900
35K → 23M15659+97#8900#8803
23M → 24M67104-37#8803#8840
24M → 40K9546+49#8840#8791
40K → 25.2M2650-24#8791#8815
25.2M → Finish7393-20#8815#8835
TOTALS2273*1176+1095

* 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