Boston Marathon logo
BOSTON MARATHON 2025

Erin Spangler

Bib: 22508•F

TX

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 43%
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:38
Rank: #18433
Start → 5K
25:38 | 8:15/mi
10K· 6.21 mi
51:37
Rank: #18665 (-232)
5K → 10K
25:59 | 8:22/mi
15K· 9.32 mi
1:17:51
Rank: #18747 (-82)
10K → 15K
26:14 | 8:27/mi
20K· 12.43 mi
1:44:54
Rank: #18911 (-164)
15K → 20K
27:03 | 8:42/mi
Half· 13.11 mi
1:50:44
Rank: #18936 (-25)
20K → Half
5:50 | 8:33/mi
25K· 15.53 mi
2:11:36
Rank: #18742 (+194)
Half → 25K
20:52 | 8:36/mi
30K· 18.64 mi
2:39:37
Rank: #18521 (+221)
25K → 30K
28:01 | 9:01/mi
20M
2:51:58
Rank: #18419 (+102)
30K → 20M
12:21 | 9:05/mi
21M
3:01:28
Rank: #18261 (+158)
20M → 21M
9:30 | 9:30/mi
35K· 21.75 mi
3:08:05
Rank: #18214 (+47)
21M → 35K
6:37 | 8:51/mi
23M
3:19:23
Rank: #18093 (+121)
35K → 23M
11:18 | 9:02/mi
24M
3:28:20
Rank: #18031 (+62)
23M → 24M
8:57 | 8:57/mi
40K· 24.85 mi
3:36:07
Rank: #17979 (+52)
24M → 40K
7:47 | 9:06/mi
25.2M
3:39:29
Rank: #17946 (+33)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:48:03
Rank: #17852 (+94)
25.2M → Finish
8:34 | 8:24/mi

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
Time1:50:44
Pace8:27 /mi
2nd Half
Distance13.11 mi
Time1:57:19
Pace8:57 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:0525:388:1525:38
8:15
-
10K
6.21 mi11:48:0451:378:1825:59
8:22
+0:07
15K
9.32 mi12:14:181:17:518:2126:14
8:27
+0:05
20K
12.43 mi12:41:211:44:548:2627:03
8:42
+0:15
Half
13.11 mi12:47:111:50:448:275:50
8:33
-0:09
25K
15.53 mi13:08:032:11:368:2820:52
8:36
+0:03
30K
18.64 mi13:36:042:39:378:3428:01
9:01
+0:25
20M
20.00 mi13:48:252:51:588:3612:21
9:05
+0:04
21M
21.00 mi13:57:553:01:288:389:30
9:30
+0:25
35K
21.75 mi14:04:323:08:058:396:37
8:51
-0:39
23M
23.00 mi14:15:503:19:238:4011:18
9:02
+0:11
24M
24.00 mi14:24:473:28:208:418:57
8:57
-0:05
40K
24.85 mi14:32:343:36:078:427:47
9:06
+0:09
25.2M
25.20 mi14:35:563:39:298:433:22
9:46
+0:40
Finish
26.22 mi14:44:303:48:038:428:34
8:24
-1:22

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

8:15 /mi

Average Pace

8:42 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:03

86% of race

Time at Steady Pace

29:38

13% of race

Time at Slower Pace

3:22

1% of race

Average Pace: 8:42 /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 mi11:22:0525:388:1525:38
8:15
#18433
10K
6.21 mi11:48:0451:378:1825:59
8:22
#18665
15K
9.32 mi12:14:181:17:518:2126:14
8:27
#18747
20K
12.43 mi12:41:211:44:548:2627:03
8:42
#18911
Half
13.11 mi12:47:111:50:448:275:50
8:33
#18936
25K
15.53 mi13:08:032:11:368:2820:52
8:36
#18742
30K
18.64 mi13:36:042:39:378:3428:01
9:01
#18521
20M
20.00 mi13:48:252:51:588:3612:21
9:05
#18419
21M
21.00 mi13:57:553:01:288:389:30
9:30
#18261
35K
21.75 mi14:04:323:08:058:396:37
8:51
#18214
23M
23.00 mi14:15:503:19:238:4011:18
9:02
#18093
24M
24.00 mi14:24:473:28:208:418:57
8:57
#18031
40K
24.85 mi14:32:343:36:078:427:47
9:06
#17979
25.2M
25.20 mi14:35:563:39:298:433:22
9:46
#17946
Finish
26.22 mi14:44:303:48:038:428:34
8:24
#17852
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi184336598659819005(Top 67%)6903(Top 56%)6903(Top 381%)
10K6.21 mi3.10 mi18665-2326718-1206718-12018965(Top 67%)6863(Top 56%)6863(Top 379%)
15K9.32 mi3.11 mi18747-826761-436761-4319005(Top 67%)6903(Top 56%)6903(Top 381%)
20K12.43 mi3.11 mi18911-1646849-886849-8819443(Top 68%)7168(Top 59%)7168(Top 395%)
Half13.11 mi0.68 mi18936-256871-226871-2219540(Top 69%)7196(Top 59%)7196(Top 397%)
25K15.53 mi2.42 mi18742+1946767+1046767+10417851(Top 63%)6345(Top 52%)6345(Top 350%)
30K18.64 mi3.11 mi18521+2216671+966671+9617785(Top 63%)6464(Top 53%)6464(Top 357%)
20M20.00 mi1.36 mi18419+1026651+206651+2017268(Top 61%)6292(Top 51%)6292(Top 347%)
21M21.00 mi1.00 mi18261+1586588+636588+6316113(Top 57%)5772(Top 47%)5772(Top 318%)
35K21.75 mi0.75 mi18214+476582+66582+617511(Top 62%)6637(Top 54%)6637(Top 366%)
23M23.00 mi1.25 mi18093+1216548+346548+3416429(Top 58%)6134(Top 50%)6134(Top 338%)
24M24.00 mi1.00 mi18031+626533+156533+1517134(Top 60%)6569(Top 54%)6569(Top 362%)
40K24.85 mi0.85 mi17979+526537-46537-416905(Top 60%)6536(Top 53%)6536(Top 361%)
25.2M25.20 mi0.35 mi17946+336526+116526+1115980(Top 56%)6085(Top 50%)6085(Top 336%)
Finish26.22 mi1.02 mi17852+946491+356491+3515669(Top 55%)5851(Top 48%)5851(Top 323%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21stories
+97ft-345ft

Overall

19005

Females

6903

F45-49

6903

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

18965

Females

6863

F45-49

6863

10K→15K

6.2 - 9.3 mi

Top 67%
×3stories
+67ft-78ft

Overall

19005

Females

6903

F45-49

6903

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

19443

Females

7168

F45-49

7168

20K→Half

12.4 - 13.1 mi

Top 69%
×2stories
+19ft-37ft

Overall

19540

Females

7196

F45-49

7196

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

17851

Females

6345

F45-49

6345

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

17785

Females

6464

F45-49

6464

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

17268

Females

6292

F45-49

6292

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

16113

Females

5772

F45-49

5772

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

17511

Females

6637

F45-49

6637

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

16429

Females

6134

F45-49

6134

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

17134

Females

6569

F45-49

6569

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16905

Females

6536

F45-49

6536

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15980

Females

6085

F45-49

6085

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

15669

Females

5851

F45-49

5851

Passing Analysis

Category:
Athletes Passed
2047
Passed By
1466
Net Change
+581
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18433
5K → 10K164396-232#18433#18665
10K → 15K155237-82#18665#18747
15K → 20K157321-164#18747#18911
20K → Half2247-25#18911#18936
Half → 25K25460+194#18936#18742
25K → 30K345124+221#18742#18521
30K → 20M16058+102#18521#18419
20M → 21M18628+158#18419#18261
21M → 35K7629+47#18261#18214
35K → 23M16241+121#18214#18093
23M → 24M10038+62#18093#18031
24M → 40K9543+52#18031#17979
40K → 25.2M4714+33#17979#17946
25.2M → Finish12430+94#17946#17852
TOTALS20471466+581
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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