Boston Marathon logo
BOSTON MARATHON 2025

Jacqui Gierer

Bib: 20916•F

MI

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 49%
Masters (Masters Women)
#0 / 6759
Top 37%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:22
Rank: #17868
Start → 5K
8:10/mi
25:22 split
10K· 6.21 mi
50:51
Rank: #17865 (+3)
5K → 10K
8:12/mi
25:29 split
15K· 9.32 mi
1:16:14
Rank: #17627 (+238)
10K → 15K
8:10/mi
25:23 split
20K· 12.43 mi
1:43:19
Rank: #18084 (-457)
15K → 20K
8:43/mi
27:05 split
Half· 13.11 mi
1:48:52
Rank: #18007 (+77)
20K → Half
8:08/mi
5:33 split
25K· 15.53 mi
2:09:29
Rank: #17818 (+189)
Half → 25K
8:30/mi
20:37 split
30K· 18.64 mi
2:36:55
Rank: #17586 (+232)
25K → 30K
8:50/mi
27:26 split
20M
2:48:53
Rank: #17420 (+166)
30K → 20M
8:48/mi
11:58 split
21M
2:58:27
Rank: #17349 (+71)
20M → 21M
9:34/mi
9:34 split
35K· 21.75 mi
3:05:15
Rank: #17389 (-40)
21M → 35K
9:05/mi
6:48 split
23M
3:16:18
Rank: #17259 (+130)
35K → 23M
8:50/mi
11:03 split
24M
3:25:06
Rank: #17193 (+66)
23M → 24M
8:48/mi
8:48 split
40K· 24.85 mi
3:32:41
Rank: #17129 (+64)
24M → 40K
8:52/mi
7:35 split
25.2M
3:35:55
Rank: #17067 (+62)
40K → 25.2M
9:23/mi
3:14 split
Finish· 26.22 mi
3:44:06
Rank: #16936 (+131)
25.2M → Finish
8:02/mi
8:11 split

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:52
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time1:55:14
Pace8:47 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:3925:228:1025:22
8:10
-
10K
6.21 mi11:44:0850:518:1125:29
8:12
+0:02
15K
9.32 mi12:09:311:16:148:1125:23
8:10
-0:02
20K
12.43 mi12:36:361:43:198:1927:05
8:43
+0:33
Half
13.11 mi12:42:091:48:528:185:33
8:08
-0:35
25K
15.53 mi13:02:462:09:298:2020:37
8:30
+0:22
30K
18.64 mi13:30:122:36:558:2527:26
8:50
+0:20
20M
20.00 mi13:42:102:48:538:2711:58
8:48
-0:02
21M
21.00 mi13:51:442:58:278:309:34
9:34
+0:46
35K
21.75 mi13:58:323:05:158:316:48
9:05
-0:29
23M
23.00 mi14:09:353:16:188:3211:03
8:50
-0:15
24M
24.00 mi14:18:233:25:068:338:48
8:48
-0:02
40K
24.85 mi14:25:583:32:418:337:35
8:52
+0:04
25.2M
25.20 mi14:29:123:35:558:343:14
9:23
+0:31
Finish
26.22 mi14:37:233:44:068:338:11
8:02
-1:21

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

8:02 /mi

Average Pace

8:33 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:55

88% of race

Time at Steady Pace

17:37

8% of race

Time at Slower Pace

9:34

4% of race

Average Pace: 8:33 /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 mi11:18:3925:228:1025:22
8:10
#17868
10K
6.21 mi11:44:0850:518:1125:29
8:12
#17865
15K
9.32 mi12:09:311:16:148:1125:23
8:10
#17627
20K
12.43 mi12:36:361:43:198:1927:05
8:43
#18084
Half
13.11 mi12:42:091:48:528:185:33
8:08
#18007
25K
15.53 mi13:02:462:09:298:2020:37
8:30
#17818
30K
18.64 mi13:30:122:36:558:2527:26
8:50
#17586
20M
20.00 mi13:42:102:48:538:2711:58
8:48
#17420
21M
21.00 mi13:51:442:58:278:309:34
9:34
#17349
35K
21.75 mi13:58:323:05:158:316:48
9:05
#17389
23M
23.00 mi14:09:353:16:188:3211:03
8:50
#17259
24M
24.00 mi14:18:233:25:068:338:48
8:48
#17193
40K
24.85 mi14:25:583:32:418:337:35
8:52
#17129
25.2M
25.20 mi14:29:123:35:558:343:14
9:23
#17067
Finish
26.22 mi14:37:233:44:068:338:11
8:02
#16936
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi178686262626217211(Top 61%)5855(Top 48%)5855(Top 341%)
10K6.21 mi3.10 mi17865+36247+156247+1517919(Top 63%)6249(Top 51%)6249(Top 364%)
15K9.32 mi3.11 mi17627+2386097+1506097+15017211(Top 61%)5855(Top 48%)5855(Top 341%)
20K12.43 mi3.11 mi18084-4576386-2896386-28919498(Top 69%)7196(Top 59%)7196(Top 419%)
Half13.11 mi0.68 mi18007+776341+456341+4516921(Top 60%)5724(Top 47%)5724(Top 333%)
25K15.53 mi2.42 mi17818+1896251+906251+9017231(Top 61%)5989(Top 49%)5989(Top 349%)
30K18.64 mi3.11 mi17586+2326176+756176+7516785(Top 59%)5912(Top 48%)5912(Top 344%)
20M20.00 mi1.36 mi17420+1666096+806096+8015727(Top 55%)5440(Top 44%)5440(Top 317%)
21M21.00 mi1.00 mi17349+716087+96087+916395(Top 58%)5925(Top 48%)5925(Top 345%)
35K21.75 mi0.75 mi17389-406132-456132-4518673(Top 66%)7281(Top 60%)7281(Top 424%)
23M23.00 mi1.25 mi17259+1306090+426090+4215269(Top 54%)5479(Top 45%)5479(Top 319%)
24M24.00 mi1.00 mi17193+666071+196071+1916344(Top 58%)6124(Top 50%)6124(Top 356%)
40K24.85 mi0.85 mi17129+646059+126059+1215612(Top 55%)5858(Top 48%)5858(Top 341%)
25.2M25.20 mi0.35 mi17067+626045+146045+1413982(Top 49%)5025(Top 41%)5025(Top 292%)
Finish26.22 mi1.02 mi16936+1315978+675978+6713138(Top 46%)4526(Top 37%)4526(Top 263%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

17211

Females

5855

F40-44

5855

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

17919

Females

6249

F40-44

6249

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

17211

Females

5855

F40-44

5855

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

19498

Females

7196

F40-44

7196

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

16921

Females

5724

F40-44

5724

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

17231

Females

5989

F40-44

5989

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

16785

Females

5912

F40-44

5912

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

15727

Females

5440

F40-44

5440

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

16395

Females

5925

F40-44

5925

21M→35K

21.0 - 21.8 mi

Top 66%
×7story building
+17ft-86ft

Overall

18673

Females

7281

F40-44

7281

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

15269

Females

5479

F40-44

5479

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

16344

Females

6124

F40-44

6124

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15612

Females

5858

F40-44

5858

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13982

Females

5025

F40-44

5025

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

13138

Females

4526

F40-44

4526

Passing Analysis

Category:
Athletes Passed
2341
Passed By
1409
Net Change
+932
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17868
5K → 10K281278+3#17868#17865
10K → 15K32486+238#17865#17627
15K → 20K76533-457#17627#18084
20K → Half847+77#18084#18007
Half → 25K25263+189#18007#17818
25K → 30K341109+232#17818#17586
30K → 20M19529+166#17586#17420
20M → 21M13059+71#17420#17349
21M → 35K5595-40#17349#17389
35K → 23M17949+130#17389#17259
23M → 24M11347+66#17259#17193
24M → 40K9531+64#17193#17129
40K → 25.2M719+62#17129#17067
25.2M → Finish14514+131#17067#16936
TOTALS23411409+932
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing